G3 U4 Assessment key
Grade 3 Unit 4 Assessment Applying Multiplication and Division
Answer Key 1.
D
2.
3.OA.3 6.
A
3.
3.OA.3 7.
3.OA.3
11. 4, 4
A
D
4.
3.OA.3 8.
3.OA.3
12. A. T
C
A
B. F C. T
5.
3.OA.3 9.
3.OA.3
13.
B
C
3.OA.3 10. D
3.OA.3
14.
3.OA.4
15.
4 x 3 = 12; or 12 ÷ 4 = 3
The product is 24. Check student arrays.
3.OA.3
3.OA.3
It will take Samantha 5 hours to finish the book.
D. F 3.OA.3
3.OA.4
A
3.OA.3 16.
17. Lisa will need to make 10 trips to the beach Check student pictures.
3.OA.3
18.
19.
20.
A. 7
A. T
A. 9
28
B. 8
B. F
B. 3
C. 4
C. F
C. 4
Check student models
D. 5
D. T
D. 8
3.OA.4
3.OA.4
3.OA.4
Copyright © Swun Math Grade 3 Unit 4 Assessment (Answer Key) Page 1
3.OA.3
Question 21. a. Student gives correct answer: 72 ÷ 9 = , Symbols may vary. b. Student gives correct answer and shows work: Nick needs 8 storage boxes; Check model for accuracy c. Student gives an accurate explanation: Sample explanation: Modelling with
Points 0.25 0.25 0.5
grouping helped me visualize the total number of comics books and how many groups of 9 there are. That’s how I determined the number of storage boxes Nick needs.
22. a. Student creates table and gives correct answer: Gema will earn $44 dollars after 10 weeks. Week Earnings
1 4
2 9
3 14
4 19
5 24
6 29
7 34
9 39
1
10 44
b. Student gives an accurate explanation: Sample explanation: After completing the pattern I observed that each week the earnings increase by $5. I also noticed that her earnings alternate between even and odd numbers and the last digit in each number alternates between a 4 and a 9. 23. Student gives correct answer and accurate models: 6 groups. (a) 1 group of 18. 1 × 18 = 18 (b) 18 groups of 1. 18 × 1 = 18 (c) 6 groups of 3. 6 × 3 = 18 (d) 3 groups of 6. 3 × 6 = 18 (e) 2 groups of 9. 2 × 9 = 18 (f) 9 groups of 2. 9 × 2 = 18. Models may vary between an array, equal groups, and repeated addition. Check drawings for accuracy.
Copyright © Swun Math Grade 3 Unit 4 Assessment (Answer Key) Page 2
1
2
Answer Key 1.
D
2.
3.OA.3 6.
A
3.
3.OA.3 7.
3.OA.3
11. 4, 4
A
D
4.
3.OA.3 8.
3.OA.3
12. A. T
C
A
B. F C. T
5.
3.OA.3 9.
3.OA.3
13.
B
C
3.OA.3 10. D
3.OA.3
14.
3.OA.4
15.
4 x 3 = 12; or 12 ÷ 4 = 3
The product is 24. Check student arrays.
3.OA.3
3.OA.3
It will take Samantha 5 hours to finish the book.
D. F 3.OA.3
3.OA.4
A
3.OA.3 16.
17. Lisa will need to make 10 trips to the beach Check student pictures.
3.OA.3
18.
19.
20.
A. 7
A. T
A. 9
28
B. 8
B. F
B. 3
C. 4
C. F
C. 4
Check student models
D. 5
D. T
D. 8
3.OA.4
3.OA.4
3.OA.4
Copyright © Swun Math Grade 3 Unit 4 Assessment (Answer Key) Page 1
3.OA.3
Question 21. a. Student gives correct answer: 72 ÷ 9 = , Symbols may vary. b. Student gives correct answer and shows work: Nick needs 8 storage boxes; Check model for accuracy c. Student gives an accurate explanation: Sample explanation: Modelling with
Points 0.25 0.25 0.5
grouping helped me visualize the total number of comics books and how many groups of 9 there are. That’s how I determined the number of storage boxes Nick needs.
22. a. Student creates table and gives correct answer: Gema will earn $44 dollars after 10 weeks. Week Earnings
1 4
2 9
3 14
4 19
5 24
6 29
7 34
9 39
1
10 44
b. Student gives an accurate explanation: Sample explanation: After completing the pattern I observed that each week the earnings increase by $5. I also noticed that her earnings alternate between even and odd numbers and the last digit in each number alternates between a 4 and a 9. 23. Student gives correct answer and accurate models: 6 groups. (a) 1 group of 18. 1 × 18 = 18 (b) 18 groups of 1. 18 × 1 = 18 (c) 6 groups of 3. 6 × 3 = 18 (d) 3 groups of 6. 3 × 6 = 18 (e) 2 groups of 9. 2 × 9 = 18 (f) 9 groups of 2. 9 × 2 = 18. Models may vary between an array, equal groups, and repeated addition. Check drawings for accuracy.
Copyright © Swun Math Grade 3 Unit 4 Assessment (Answer Key) Page 2
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