Lesson 13.1: Comparing Lengths: Long, Short, and Tall
Direct length comparisons with baseline alignment.
⏱️ Reading Time: 15 mins
• ❓ 50 Interactive Practice Questions
#MeasurementOfLength #LongAndShort #TallAndShort
Comparing Lengths: Long, Short, Tall & Distance
How do we know if a pencil will fit inside your pencil case? We measure and compare its length!
Pencil (Longer)
Eraser (Shorter)
Measured using
Paper Clips
Measurement of Length: Comparing long and short objects using units.
1. Length vs Height
• Length: Measures how long an object is from one end to the other when lying flat (e.g., a train, snake, or skipping rope).
• Height: Measures how tall an object stands from the ground up (e.g., a tree, ladder, or person).
Golden Rule of Comparing: Always align both objects at the same starting baseline! If one starts ahead of the other, the comparison won't be fair.
2. Ordering by Length
We can arrange 3 pencils from shortest to longest: Pencil A (5 cm), Pencil B (10 cm), Pencil C (15 cm).
Vocabulary: Long, Longer, Longest; Short, Shorter, Shortest; Tall, Taller, Tallest.
💡 Key Learning Takeaways
- Length measures flat distance; height measures vertical standing distance.
- Always line up starting endpoints to compare fairly.
- Use terms: longer, shorter, tallest, shortest.
🎯 Key Learning Takeaways
Comparing length and height.
📄 Printable Worksheets (10 Available)
Download ready-to-print PDFs for offline student practice with separate parent/teacher answer keys.
WL-G2-C13-W10
A4 • 15 Qs
Measurement of Length — Worksheet 10
Curriculum Excellence & Final Review
WL-G2-C13-W09
A4 • 15 Qs
Measurement of Length — Worksheet 9
Mastery Assessment & Progress Check
WL-G2-C13-W08
A4 • 15 Qs
Measurement of Length — Worksheet 8
Mixed Review & Reinforcement
WL-G2-C13-W07
A4 • 15 Qs
Measurement of Length — Worksheet 7
Everyday Applications & Story Maths
WL-G2-C13-W06
A4 • 15 Qs
Measurement of Length — Worksheet 6
Critical Thinking & Deep Understanding
WL-G2-C13-W05
A4 • 15 Qs
Measurement of Length — Worksheet 5
Speed Challenge & Quick Check
WL-G2-C13-W04
A4 • 15 Qs
Measurement of Length — Worksheet 4
Problem Solving & Real-Life Stories
WL-G2-C13-W03
A4 • 15 Qs
Measurement of Length — Worksheet 3
Hands-on Visual Activity & Matching
WL-G2-C13-W02
A4 • 15 Qs
Measurement of Length — Worksheet 2
Essential Practice & Skill Builder
WL-G2-C13-W01
A4 • 15 Qs
Measurement of Length — Worksheet 1
Foundational Concepts & Visual Exploration
✍️ Lesson Practice Questions (50 Questions)
Solve these real-world challenges online, test your understanding, and reveal instant step-by-step explanations.
1
Multiple Choice
Hard
1 Mark
What is the difference between (51 + 10) and (19 + 10)?
A
32
B
19
C
51
D
42
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
32
Step-by-Step Explanation:
Adding 10 to both numbers does not change their difference: (51 + 10) - (19 + 10) = 51 - 19 = 32.
2
Multiple Choice
Hard
1 Mark
A secret number plus 32 equals 51. If you double the secret number, what is the result?
A
102
B
19
C
38
D
21
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
38
Step-by-Step Explanation:
The secret number is 19. Doubling it gives 19 × 2 = 38.
3
Multiple Choice
Hard
1 Mark
If 19 + 32 = 51, what is 32 + 19?
A
32
B
52
C
51
D
19
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
51
Step-by-Step Explanation:
The order of addends does not affect the sum (commutative property).
4
Multiple Choice
Hard
1 Mark
Why is 51 greater than 19?
A
Because {tot} has a bigger first digit
B
Numbers ending in 0 are always smaller
C
Because {v1} is an even number
D
Because 51 includes 19 plus an additional 32 items
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Because 51 includes 19 plus an additional 32 items
Step-by-Step Explanation:
Adding a positive quantity always increases the total.
5
Multiple Choice
Medium
1 Mark
Sam evaluated 51 - 32 and wrote 83. What was Sam's mistake?
A
He forgot the units place
B
He multiplied by 2
C
He added instead of subtracting
D
He divided the numbers
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
He added instead of subtracting
Step-by-Step Explanation:
The minus sign means subtraction (taking away), but Sam performed addition.
6
Multiple Choice
Medium
1 Mark
A student claimed that 19 + 32 = 61 because 'we must add 10 to every answer'. Why is this student wrong?
A
The student subtracted instead
B
The answer is 0
C
Addition is only for 1-digit numbers
D
Addition means combining only the given numbers without adding extra amounts
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Addition means combining only the given numbers without adding extra amounts
Step-by-Step Explanation:
19 + 32 equals exactly 51.
7
Multiple Choice
Medium
1 Mark
Complete the pattern: 19, 24, 29, [ ? ].
A
39
B
33
C
31
D
34
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
34
Step-by-Step Explanation:
The pattern increases by 5. 29 + 5 = 34.
8
Multiple Choice
Medium
1 Mark
Find the missing number: 19 + [ ? ] = 51.
A
33
B
31
C
32
D
19
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
32
Step-by-Step Explanation:
Missing value is 32 because 19 + 32 = 51.
9
Multiple Choice
Medium
1 Mark
In a school garden, there are 19 yellow marigolds and 32 purple petunias. How many flowers are blooming in total?
A
51 flowers
B
32 flowers
C
56 flowers
D
19 flowers
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
51 flowers
Step-by-Step Explanation:
19 + 32 = 51 flowers.
10
Multiple Choice
Medium
1 Mark
A school library received 51 new graphic novels. Students checked out 32 novels on Monday. How many new novels are still on the shelf?
A
19 novels
B
51 novels
C
32 novels
D
20 novels
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
19 novels
Step-by-Step Explanation:
51 - 32 = 19 novels remaining.
11
Multiple Choice
Medium
1 Mark
A baker packed 19 apple pies in the morning and 32 cherry pies in the afternoon. How many pies did the baker pack in all?
A
49 pies
B
53 pies
C
19 pies
D
51 pies
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
51 pies
Step-by-Step Explanation:
19 + 32 = 51 pies in total.
12
Multiple Choice
Easy
1 Mark
What number is 10 more than 19?
A
20
B
39
C
29
D
9
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
29
Step-by-Step Explanation:
19 + 10 = 29.
13
Multiple Choice
Easy
1 Mark
Which comparison is correct: 51 [ ? ] 46?
A
<
B
=
C
≈
D
>
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
>
Step-by-Step Explanation:
51 is greater than 46.
14
Multiple Choice
Easy
1 Mark
Calculate: 51 - 32 = ?
A
18
B
32
C
20
D
19
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
19
Step-by-Step Explanation:
51 - 32 = 19.
15
Multiple Choice
Easy
1 Mark
In Chapter 'Measurement of Length', calculate: 19 + 32 = ?
A
50
B
51
C
61
D
52
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
51
Step-by-Step Explanation:
19 + 32 = 51.
16
Multiple Choice
Hard
1 Mark
What is the difference between (76 + 10) and (47 + 10)?
A
39
B
47
C
76
D
29
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
29
Step-by-Step Explanation:
Adding 10 to both numbers does not change their difference: (76 + 10) - (47 + 10) = 76 - 47 = 29.
17
Multiple Choice
Hard
1 Mark
A secret number plus 29 equals 76. If you double the secret number, what is the result?
A
47
B
152
C
49
D
94
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
94
Step-by-Step Explanation:
The secret number is 47. Doubling it gives 47 × 2 = 94.
18
Multiple Choice
Hard
1 Mark
If 47 + 29 = 76, what is 29 + 47?
A
47
B
29
C
76
D
77
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
76
Step-by-Step Explanation:
The order of addends does not affect the sum (commutative property).
19
Multiple Choice
Hard
1 Mark
Why is 76 greater than 47?
A
Because {v1} is an even number
B
Because 76 includes 47 plus an additional 29 items
C
Because {tot} has a bigger first digit
D
Numbers ending in 0 are always smaller
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Because 76 includes 47 plus an additional 29 items
Step-by-Step Explanation:
Adding a positive quantity always increases the total.
20
Multiple Choice
Medium
1 Mark
Sam evaluated 76 - 29 and wrote 105. What was Sam's mistake?
A
He forgot the units place
B
He divided the numbers
C
He multiplied by 2
D
He added instead of subtracting
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
He added instead of subtracting
Step-by-Step Explanation:
The minus sign means subtraction (taking away), but Sam performed addition.
21
Multiple Choice
Medium
1 Mark
A student claimed that 47 + 29 = 86 because 'we must add 10 to every answer'. Why is this student wrong?
A
Addition is only for 1-digit numbers
B
The answer is 0
C
The student subtracted instead
D
Addition means combining only the given numbers without adding extra amounts
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Addition means combining only the given numbers without adding extra amounts
Step-by-Step Explanation:
47 + 29 equals exactly 76.
22
Multiple Choice
Medium
1 Mark
Complete the pattern: 47, 52, 57, [ ? ].
A
67
B
62
C
61
D
59
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
62
Step-by-Step Explanation:
The pattern increases by 5. 57 + 5 = 62.
23
Multiple Choice
Medium
1 Mark
Find the missing number: 47 + [ ? ] = 76.
A
47
B
28
C
30
D
29
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
29
Step-by-Step Explanation:
Missing value is 29 because 47 + 29 = 76.
24
Multiple Choice
Medium
1 Mark
In a school garden, there are 47 yellow marigolds and 29 purple petunias. How many flowers are blooming in total?
A
81 flowers
B
47 flowers
C
29 flowers
D
76 flowers
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
76 flowers
Step-by-Step Explanation:
47 + 29 = 76 flowers.
25
Multiple Choice
Medium
1 Mark
A school library received 76 new graphic novels. Students checked out 29 novels on Monday. How many new novels are still on the shelf?
A
48 novels
B
29 novels
C
76 novels
D
47 novels
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
47 novels
Step-by-Step Explanation:
76 - 29 = 47 novels remaining.
26
Multiple Choice
Medium
1 Mark
A baker packed 47 apple pies in the morning and 29 cherry pies in the afternoon. How many pies did the baker pack in all?
A
78 pies
B
76 pies
C
74 pies
D
47 pies
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
76 pies
Step-by-Step Explanation:
47 + 29 = 76 pies in total.
27
Multiple Choice
Easy
1 Mark
What number is 10 more than 47?
A
37
B
48
C
67
D
57
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
57
Step-by-Step Explanation:
47 + 10 = 57.
28
Multiple Choice
Easy
1 Mark
Which comparison is correct: 76 [ ? ] 71?
A
<
B
=
C
≈
D
>
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
>
Step-by-Step Explanation:
76 is greater than 71.
29
Multiple Choice
Easy
1 Mark
Calculate: 76 - 29 = ?
A
29
B
48
C
47
D
46
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
47
Step-by-Step Explanation:
76 - 29 = 47.
30
Multiple Choice
Easy
1 Mark
In Chapter 'Measurement of Length', calculate: 47 + 29 = ?
A
86
B
75
C
77
D
76
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
76
Step-by-Step Explanation:
47 + 29 = 76.
31
Multiple Choice
Hard
1 Mark
What is the difference between (66 + 10) and (40 + 10)?
A
66
B
40
C
26
D
36
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
26
Step-by-Step Explanation:
Adding 10 to both numbers does not change their difference: (66 + 10) - (40 + 10) = 66 - 40 = 26.
32
Multiple Choice
Hard
1 Mark
A secret number plus 26 equals 66. If you double the secret number, what is the result?
A
132
B
42
C
80
D
40
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
80
Step-by-Step Explanation:
The secret number is 40. Doubling it gives 40 × 2 = 80.
33
Multiple Choice
Hard
1 Mark
If 40 + 26 = 66, what is 26 + 40?
A
67
B
40
C
66
D
26
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66
Step-by-Step Explanation:
The order of addends does not affect the sum (commutative property).
34
Multiple Choice
Hard
1 Mark
Why is 66 greater than 40?
A
Because 66 includes 40 plus an additional 26 items
B
Numbers ending in 0 are always smaller
C
Because {tot} has a bigger first digit
D
Because {v1} is an even number
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Because 66 includes 40 plus an additional 26 items
Step-by-Step Explanation:
Adding a positive quantity always increases the total.
35
Multiple Choice
Medium
1 Mark
Sam evaluated 66 - 26 and wrote 92. What was Sam's mistake?
A
He multiplied by 2
B
He forgot the units place
C
He divided the numbers
D
He added instead of subtracting
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
He added instead of subtracting
Step-by-Step Explanation:
The minus sign means subtraction (taking away), but Sam performed addition.
36
Multiple Choice
Medium
1 Mark
A student claimed that 40 + 26 = 76 because 'we must add 10 to every answer'. Why is this student wrong?
A
The student subtracted instead
B
Addition means combining only the given numbers without adding extra amounts
C
Addition is only for 1-digit numbers
D
The answer is 0
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Addition means combining only the given numbers without adding extra amounts
Step-by-Step Explanation:
40 + 26 equals exactly 66.
37
Multiple Choice
Medium
1 Mark
Complete the pattern: 40, 45, 50, [ ? ].
A
52
B
54
C
60
D
55
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
55
Step-by-Step Explanation:
The pattern increases by 5. 50 + 5 = 55.
38
Multiple Choice
Medium
1 Mark
Find the missing number: 40 + [ ? ] = 66.
A
25
B
27
C
26
D
40
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
26
Step-by-Step Explanation:
Missing value is 26 because 40 + 26 = 66.
39
Multiple Choice
Medium
1 Mark
In a school garden, there are 40 yellow marigolds and 26 purple petunias. How many flowers are blooming in total?
A
40 flowers
B
66 flowers
C
26 flowers
D
71 flowers
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66 flowers
Step-by-Step Explanation:
40 + 26 = 66 flowers.
40
Multiple Choice
Medium
1 Mark
A school library received 66 new graphic novels. Students checked out 26 novels on Monday. How many new novels are still on the shelf?
A
26 novels
B
41 novels
C
40 novels
D
66 novels
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
40 novels
Step-by-Step Explanation:
66 - 26 = 40 novels remaining.
41
Multiple Choice
Medium
1 Mark
A baker packed 40 apple pies in the morning and 26 cherry pies in the afternoon. How many pies did the baker pack in all?
A
66 pies
B
68 pies
C
64 pies
D
40 pies
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66 pies
Step-by-Step Explanation:
40 + 26 = 66 pies in total.
42
Multiple Choice
Easy
1 Mark
What number is 10 more than 40?
A
60
B
30
C
41
D
50
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
50
Step-by-Step Explanation:
40 + 10 = 50.
43
Multiple Choice
Easy
1 Mark
Which comparison is correct: 66 [ ? ] 61?
A
>
B
<
C
=
D
≈
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
>
Step-by-Step Explanation:
66 is greater than 61.
44
Multiple Choice
Easy
1 Mark
Calculate: 66 - 26 = ?
A
26
B
41
C
39
D
40
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
40
Step-by-Step Explanation:
66 - 26 = 40.
45
Multiple Choice
Easy
1 Mark
In Chapter 'Measurement of Length', calculate: 40 + 26 = ?
A
66
B
76
C
67
D
65
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66
Step-by-Step Explanation:
40 + 26 = 66.
46
Multiple Choice
Hard
1 Mark
What is the difference between (56 + 10) and (33 + 10)?
A
56
B
23
C
33
D
33
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
23
Step-by-Step Explanation:
Adding 10 to both numbers does not change their difference: (56 + 10) - (33 + 10) = 56 - 33 = 23.
47
Multiple Choice
Hard
1 Mark
A secret number plus 23 equals 56. If you double the secret number, what is the result?
A
112
B
66
C
35
D
33
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66
Step-by-Step Explanation:
The secret number is 33. Doubling it gives 33 × 2 = 66.
48
Multiple Choice
Hard
1 Mark
If 33 + 23 = 56, what is 23 + 33?
A
57
B
33
C
23
D
56
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
56
Step-by-Step Explanation:
The order of addends does not affect the sum (commutative property).
49
Multiple Choice
Hard
1 Mark
Why is 56 greater than 33?
A
Because {tot} has a bigger first digit
B
Because 56 includes 33 plus an additional 23 items
C
Numbers ending in 0 are always smaller
D
Because {v1} is an even number
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Because 56 includes 33 plus an additional 23 items
Step-by-Step Explanation:
Adding a positive quantity always increases the total.
50
Multiple Choice
Medium
1 Mark
Sam evaluated 56 - 23 and wrote 79. What was Sam's mistake?
A
He multiplied by 2
B
He added instead of subtracting
C
He divided the numbers
D
He forgot the units place
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
He added instead of subtracting
Step-by-Step Explanation:
The minus sign means subtraction (taking away), but Sam performed addition.