Lesson 18.1: Sorting Information and Counting Objects
Sort data into categories and use tally marks.
⏱️ Reading Time: 15 mins
• ❓ 50 Interactive Practice Questions
#DataHandling #SortingInformation #TallyMarks
Sorting Information & Counting Objects
Data is a collection of facts, numbers, or information. Sorting data makes messy information clean, organized, and easy to understand!
Apples:
(4)
Bananas:
(3)
Total Fruits = 7
Data Handling: Pictographs use picture symbols to show and compare quantities.
1. Sorting by Attributes
When a mixed box of stationery is dumped on a table, we sort it into groups: all pencils together, all erasers together, all sharpeners together. Then we count each pile.
Example: In a basket of 10 fruits, we sort and count: 4 Apples, 3 Bananas, and 3 Oranges.
2. Using Tally Marks to Count
Tally marks are vertical stroke marks (|). For each item you count, draw 1 line. When you reach 5, draw a diagonal slash across the four lines (~~||||~~) to make a bundle of 5! Counting in 5s is super fast.
Tally for 8: 1 bundle of 5 + 3 single lines = 8 items!
💡 Key Learning Takeaways
- Sorting arranges items into clear categories.
- Tally marks make counting without mistakes easy.
- Bundles of 5 tally marks enable fast skip counting.
🎯 Key Learning Takeaways
Sorting and tally counts.
📄 Printable Worksheets (10 Available)
Download ready-to-print PDFs for offline student practice with separate parent/teacher answer keys.
WL-G2-C18-W10
A4 • 15 Qs
Data Handling — Worksheet 10
Curriculum Excellence & Final Review
WL-G2-C18-W09
A4 • 15 Qs
Data Handling — Worksheet 9
Mastery Assessment & Progress Check
WL-G2-C18-W08
A4 • 15 Qs
Data Handling — Worksheet 8
Mixed Review & Reinforcement
WL-G2-C18-W07
A4 • 15 Qs
Data Handling — Worksheet 7
Everyday Applications & Story Maths
WL-G2-C18-W06
A4 • 15 Qs
Data Handling — Worksheet 6
Critical Thinking & Deep Understanding
WL-G2-C18-W05
A4 • 15 Qs
Data Handling — Worksheet 5
Speed Challenge & Quick Check
WL-G2-C18-W04
A4 • 15 Qs
Data Handling — Worksheet 4
Problem Solving & Real-Life Stories
WL-G2-C18-W03
A4 • 15 Qs
Data Handling — Worksheet 3
Hands-on Visual Activity & Matching
WL-G2-C18-W02
A4 • 15 Qs
Data Handling — Worksheet 2
Essential Practice & Skill Builder
WL-G2-C18-W01
A4 • 15 Qs
Data Handling — 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 (66 + 10) and (34 + 10)?
A
32
B
42
C
66
D
34
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
32
Step-by-Step Explanation:
Adding 10 to both numbers does not change their difference: (66 + 10) - (34 + 10) = 66 - 34 = 32.
2
Multiple Choice
Hard
1 Mark
A secret number plus 32 equals 66. If you double the secret number, what is the result?
A
36
B
34
C
68
D
132
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
68
Step-by-Step Explanation:
The secret number is 34. Doubling it gives 34 × 2 = 68.
3
Multiple Choice
Hard
1 Mark
If 34 + 32 = 66, what is 32 + 34?
A
66
B
67
C
32
D
34
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66
Step-by-Step Explanation:
The order of addends does not affect the sum (commutative property).
4
Multiple Choice
Hard
1 Mark
Why is 66 greater than 34?
A
Numbers ending in 0 are always smaller
B
Because {tot} has a bigger first digit
C
Because {v1} is an even number
D
Because 66 includes 34 plus an additional 32 items
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Because 66 includes 34 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 66 - 32 and wrote 98. What was Sam's mistake?
A
He added instead of subtracting
B
He multiplied by 2
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.
6
Multiple Choice
Medium
1 Mark
A student claimed that 34 + 32 = 76 because 'we must add 10 to every answer'. Why is this student wrong?
A
The answer is 0
B
Addition is only for 1-digit numbers
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:
34 + 32 equals exactly 66.
7
Multiple Choice
Medium
1 Mark
Complete the pattern: 34, 39, 44, [ ? ].
A
48
B
46
C
54
D
49
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
49
Step-by-Step Explanation:
The pattern increases by 5. 44 + 5 = 49.
8
Multiple Choice
Medium
1 Mark
Find the missing number: 34 + [ ? ] = 66.
A
33
B
34
C
31
D
32
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
32
Step-by-Step Explanation:
Missing value is 32 because 34 + 32 = 66.
9
Multiple Choice
Medium
1 Mark
In a school garden, there are 34 yellow marigolds and 32 purple petunias. How many flowers are blooming in total?
A
71 flowers
B
66 flowers
C
34 flowers
D
32 flowers
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66 flowers
Step-by-Step Explanation:
34 + 32 = 66 flowers.
10
Multiple Choice
Medium
1 Mark
A school library received 66 new graphic novels. Students checked out 32 novels on Monday. How many new novels are still on the shelf?
A
66 novels
B
35 novels
C
34 novels
D
32 novels
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
34 novels
Step-by-Step Explanation:
66 - 32 = 34 novels remaining.
11
Multiple Choice
Medium
1 Mark
A baker packed 34 apple pies in the morning and 32 cherry pies in the afternoon. How many pies did the baker pack in all?
A
68 pies
B
64 pies
C
66 pies
D
34 pies
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66 pies
Step-by-Step Explanation:
34 + 32 = 66 pies in total.
12
Multiple Choice
Easy
1 Mark
What number is 10 more than 34?
A
54
B
44
C
24
D
35
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
44
Step-by-Step Explanation:
34 + 10 = 44.
13
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.
14
Multiple Choice
Easy
1 Mark
Calculate: 66 - 32 = ?
A
33
B
32
C
34
D
35
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
34
Step-by-Step Explanation:
66 - 32 = 34.
15
Multiple Choice
Easy
1 Mark
In Chapter 'Data Handling', calculate: 34 + 32 = ?
A
65
B
66
C
76
D
67
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
66
Step-by-Step Explanation:
34 + 32 = 66.
16
Multiple Choice
Hard
1 Mark
What is the difference between (56 + 10) and (27 + 10)?
A
27
B
39
C
29
D
56
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
29
Step-by-Step Explanation:
Adding 10 to both numbers does not change their difference: (56 + 10) - (27 + 10) = 56 - 27 = 29.
17
Multiple Choice
Hard
1 Mark
A secret number plus 29 equals 56. If you double the secret number, what is the result?
A
27
B
54
C
112
D
29
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
54
Step-by-Step Explanation:
The secret number is 27. Doubling it gives 27 × 2 = 54.
18
Multiple Choice
Hard
1 Mark
If 27 + 29 = 56, what is 29 + 27?
A
29
B
56
C
57
D
27
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
56
Step-by-Step Explanation:
The order of addends does not affect the sum (commutative property).
19
Multiple Choice
Hard
1 Mark
Why is 56 greater than 27?
A
Because 56 includes 27 plus an additional 29 items
B
Because {tot} has a bigger first digit
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 27 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 56 - 29 and wrote 85. What was Sam's mistake?
A
He forgot the units place
B
He multiplied by 2
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.
21
Multiple Choice
Medium
1 Mark
A student claimed that 27 + 29 = 66 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
Addition means combining only the given numbers without adding extra amounts
D
The student subtracted instead
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Addition means combining only the given numbers without adding extra amounts
Step-by-Step Explanation:
27 + 29 equals exactly 56.
22
Multiple Choice
Medium
1 Mark
Complete the pattern: 27, 32, 37, [ ? ].
A
42
B
41
C
47
D
39
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
42
Step-by-Step Explanation:
The pattern increases by 5. 37 + 5 = 42.
23
Multiple Choice
Medium
1 Mark
Find the missing number: 27 + [ ? ] = 56.
A
28
B
29
C
30
D
27
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
29
Step-by-Step Explanation:
Missing value is 29 because 27 + 29 = 56.
24
Multiple Choice
Medium
1 Mark
In a school garden, there are 27 yellow marigolds and 29 purple petunias. How many flowers are blooming in total?
A
29 flowers
B
61 flowers
C
27 flowers
D
56 flowers
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
56 flowers
Step-by-Step Explanation:
27 + 29 = 56 flowers.
25
Multiple Choice
Medium
1 Mark
A school library received 56 new graphic novels. Students checked out 29 novels on Monday. How many new novels are still on the shelf?
A
29 novels
B
28 novels
C
27 novels
D
56 novels
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
27 novels
Step-by-Step Explanation:
56 - 29 = 27 novels remaining.
26
Multiple Choice
Medium
1 Mark
A baker packed 27 apple pies in the morning and 29 cherry pies in the afternoon. How many pies did the baker pack in all?
A
27 pies
B
56 pies
C
54 pies
D
58 pies
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
56 pies
Step-by-Step Explanation:
27 + 29 = 56 pies in total.
27
Multiple Choice
Easy
1 Mark
What number is 10 more than 27?
A
47
B
37
C
17
D
28
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
37
Step-by-Step Explanation:
27 + 10 = 37.
28
Multiple Choice
Easy
1 Mark
Which comparison is correct: 56 [ ? ] 51?
A
=
B
≈
C
<
D
>
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
>
Step-by-Step Explanation:
56 is greater than 51.
29
Multiple Choice
Easy
1 Mark
Calculate: 56 - 29 = ?
A
28
B
27
C
29
D
26
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
27
Step-by-Step Explanation:
56 - 29 = 27.
30
Multiple Choice
Easy
1 Mark
In Chapter 'Data Handling', calculate: 27 + 29 = ?
A
66
B
56
C
57
D
55
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
56
Step-by-Step Explanation:
27 + 29 = 56.
31
Multiple Choice
Hard
1 Mark
What is the difference between (46 + 10) and (20 + 10)?
A
46
B
26
C
36
D
20
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
26
Step-by-Step Explanation:
Adding 10 to both numbers does not change their difference: (46 + 10) - (20 + 10) = 46 - 20 = 26.
32
Multiple Choice
Hard
1 Mark
A secret number plus 26 equals 46. If you double the secret number, what is the result?
A
22
B
20
C
40
D
92
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
40
Step-by-Step Explanation:
The secret number is 20. Doubling it gives 20 × 2 = 40.
33
Multiple Choice
Hard
1 Mark
If 20 + 26 = 46, what is 26 + 20?
A
47
B
26
C
46
D
20
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
46
Step-by-Step Explanation:
The order of addends does not affect the sum (commutative property).
34
Multiple Choice
Hard
1 Mark
Why is 46 greater than 20?
A
Because {tot} has a bigger first digit
B
Because {v1} is an even number
C
Because 46 includes 20 plus an additional 26 items
D
Numbers ending in 0 are always smaller
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Because 46 includes 20 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 46 - 26 and wrote 72. What was Sam's mistake?
A
He divided the numbers
B
He multiplied by 2
C
He forgot the units place
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 20 + 26 = 56 because 'we must add 10 to every answer'. Why is this student wrong?
A
The student subtracted instead
B
Addition is only for 1-digit numbers
C
Addition means combining only the given numbers without adding extra amounts
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:
20 + 26 equals exactly 46.
37
Multiple Choice
Medium
1 Mark
Complete the pattern: 20, 25, 30, [ ? ].
A
34
B
40
C
32
D
35
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
35
Step-by-Step Explanation:
The pattern increases by 5. 30 + 5 = 35.
38
Multiple Choice
Medium
1 Mark
Find the missing number: 20 + [ ? ] = 46.
A
25
B
26
C
27
D
20
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
26
Step-by-Step Explanation:
Missing value is 26 because 20 + 26 = 46.
39
Multiple Choice
Medium
1 Mark
In a school garden, there are 20 yellow marigolds and 26 purple petunias. How many flowers are blooming in total?
A
51 flowers
B
26 flowers
C
46 flowers
D
20 flowers
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
46 flowers
Step-by-Step Explanation:
20 + 26 = 46 flowers.
40
Multiple Choice
Medium
1 Mark
A school library received 46 new graphic novels. Students checked out 26 novels on Monday. How many new novels are still on the shelf?
A
20 novels
B
26 novels
C
21 novels
D
46 novels
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
20 novels
Step-by-Step Explanation:
46 - 26 = 20 novels remaining.
41
Multiple Choice
Medium
1 Mark
A baker packed 20 apple pies in the morning and 26 cherry pies in the afternoon. How many pies did the baker pack in all?
A
48 pies
B
20 pies
C
44 pies
D
46 pies
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
46 pies
Step-by-Step Explanation:
20 + 26 = 46 pies in total.
42
Multiple Choice
Easy
1 Mark
What number is 10 more than 20?
A
10
B
30
C
40
D
21
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
30
Step-by-Step Explanation:
20 + 10 = 30.
43
Multiple Choice
Easy
1 Mark
Which comparison is correct: 46 [ ? ] 41?
A
>
B
=
C
≈
D
<
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
>
Step-by-Step Explanation:
46 is greater than 41.
44
Multiple Choice
Easy
1 Mark
Calculate: 46 - 26 = ?
A
19
B
20
C
26
D
21
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
20
Step-by-Step Explanation:
46 - 26 = 20.
45
Multiple Choice
Easy
1 Mark
In Chapter 'Data Handling', calculate: 20 + 26 = ?
A
45
B
56
C
47
D
46
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
46
Step-by-Step Explanation:
20 + 26 = 46.
46
Multiple Choice
Hard
1 Mark
What is the difference between (71 + 10) and (48 + 10)?
A
71
B
33
C
48
D
23
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
23
Step-by-Step Explanation:
Adding 10 to both numbers does not change their difference: (71 + 10) - (48 + 10) = 71 - 48 = 23.
47
Multiple Choice
Hard
1 Mark
A secret number plus 23 equals 71. If you double the secret number, what is the result?
A
96
B
50
C
48
D
142
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
96
Step-by-Step Explanation:
The secret number is 48. Doubling it gives 48 × 2 = 96.
48
Multiple Choice
Hard
1 Mark
If 48 + 23 = 71, what is 23 + 48?
A
48
B
72
C
71
D
23
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
71
Step-by-Step Explanation:
The order of addends does not affect the sum (commutative property).
49
Multiple Choice
Hard
1 Mark
Why is 71 greater than 48?
A
Numbers ending in 0 are always smaller
B
Because {v1} is an even number
C
Because 71 includes 48 plus an additional 23 items
D
Because {tot} has a bigger first digit
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Because 71 includes 48 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 71 - 23 and wrote 94. 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.