G1 U9 Assessment Key

Grade 1 Unit 9 Assessment Subtraction Strategies

Answer Key All questions are worth 1 point unless otherwise noted. 1.

2.

3.

4.

5.

B

A

C

D

A

1.OA.5

1.OA.6

1.OA.4

1.OA.5

1.OA.4

6.

7.

8.

9.

10.

C

A

C

D

C

1.OA.5

1.OA.6

1.OA.5

1.OA.5

1.OA.5

11. 1 point: Student gives one correct answer. Equations may vary. [Correct responses: 9+4=13; 4+9=13] 1.OA.4 12. 1 point: Student gives all parts of the correct answer in any order: 3, 4, 7 1.OA.6 13. 1 point: Student correctly models the difference on a number line. Models may vary. Sample response:

1.OA.6

Copyright © Swun Math Grade 1 Unit 9 Assessment (Answer Key)

14. 3 points: Student gives all parts of the correct answer in any order. 5+2=7, 7-2=5, 7-5=2 1.OA.6 15. 1 point: Student provides an accurate drawing. Sample drawing:

1 point: Student provides an accurate equation. Equations may vary. [Sample equations: 12-8=n; 8+n=12] 1 point: Student provides the correct answer: n=4 1.OA.1

lll

Copyright © Swun Math, 1/13, Rev. 4/13 Grade 2 Unit 2 Lesson 3, TE Page 2