G1 U9 Assessment
Name__________________________________ Date_______________
Grade 1 Unit 9 Assessment Subtraction Strategies Note: The classroom teacher reads the test questions aloud to students.
1.
Count back to find the difference.
12 − 3 = _____
8
2.
9
15
10
Which equation completes these related facts?
8 + 4 = 12
4 + 8 = 12
8−4=4
12 – 4 = 8 12 – 8 = 4
12 + 4 = 16
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 1
8 + 12 = 20
3.
Which addition fact can help solve this subtraction problem?
8−5=∎ 3+4=7
4.
4+4=8
5+3=8
8 + 5 = 13
Find the difference. Use the number line to help you.
13 − 7 = _____
6
7
8
5
5.
9
20
10
11
12
13
14
15
7
6
Which number is missing from both equations?
13 − 9 = ∎
4
9 + ∎ = 13
5
22
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 2
8
6.
Which equation does not belong with these related facts?
9 + 2 = 11 2 + 9 = 11
11 − 2 = 9
7.
9 + 2 = 11
11 + 2 = 13
2 + 9 = 11
Which expression does this number line best represent?
7
15 − 5 − 2
8.
11 – 2 = 9 11 + 2 = 13
8
9
10
11
16 − 6 − 3
12
13
14
17 − 7 − 5
15
16
18 − 9 − 3
Count back to find the difference.
10 − 2 = _____
12
7
8
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 3
9
9.
Count back to find the difference.
13 − 3 = _____
11
7
9
10
10. Which equation does this number line show?
0
9−5=4
1
2
3
10 − 5 = 5
4
5
6
7
9−4=5
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 4
8
9
8−3=5
11. Write an addition fact that can help solve this subtraction problem.
13 − 9 = ∎
_______________________________________
12. List the three numbers used in these related facts.
3+4=7 4+3=7
7–3=4 7–4=3
_______________________________________
13. Show the difference on the number line.
14 − 6 = ________
7
8
9
10
11
12
13
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 5
14
15
16
14. Use the relationship between addition and subtraction to find the remaining facts.
2+5=7
15. Mike has 12 nickels. Joanie has 8 nickels. How many fewer nickels does Joanie have than Mike? Use a drawing and an equation to solve for the unknown. Drawing:
Equation:
Solution:
n = _________________ Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 6
Grade 1 Unit 9 Assessment Subtraction Strategies Note: The classroom teacher reads the test questions aloud to students.
1.
Count back to find the difference.
12 − 3 = _____
8
2.
9
15
10
Which equation completes these related facts?
8 + 4 = 12
4 + 8 = 12
8−4=4
12 – 4 = 8 12 – 8 = 4
12 + 4 = 16
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 1
8 + 12 = 20
3.
Which addition fact can help solve this subtraction problem?
8−5=∎ 3+4=7
4.
4+4=8
5+3=8
8 + 5 = 13
Find the difference. Use the number line to help you.
13 − 7 = _____
6
7
8
5
5.
9
20
10
11
12
13
14
15
7
6
Which number is missing from both equations?
13 − 9 = ∎
4
9 + ∎ = 13
5
22
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 2
8
6.
Which equation does not belong with these related facts?
9 + 2 = 11 2 + 9 = 11
11 − 2 = 9
7.
9 + 2 = 11
11 + 2 = 13
2 + 9 = 11
Which expression does this number line best represent?
7
15 − 5 − 2
8.
11 – 2 = 9 11 + 2 = 13
8
9
10
11
16 − 6 − 3
12
13
14
17 − 7 − 5
15
16
18 − 9 − 3
Count back to find the difference.
10 − 2 = _____
12
7
8
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 3
9
9.
Count back to find the difference.
13 − 3 = _____
11
7
9
10
10. Which equation does this number line show?
0
9−5=4
1
2
3
10 − 5 = 5
4
5
6
7
9−4=5
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 4
8
9
8−3=5
11. Write an addition fact that can help solve this subtraction problem.
13 − 9 = ∎
_______________________________________
12. List the three numbers used in these related facts.
3+4=7 4+3=7
7–3=4 7–4=3
_______________________________________
13. Show the difference on the number line.
14 − 6 = ________
7
8
9
10
11
12
13
Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 5
14
15
16
14. Use the relationship between addition and subtraction to find the remaining facts.
2+5=7
15. Mike has 12 nickels. Joanie has 8 nickels. How many fewer nickels does Joanie have than Mike? Use a drawing and an equation to solve for the unknown. Drawing:
Equation:
Solution:
n = _________________ Copyright © Swun Math Grade 1 Unit 9 Assessment, Page 6
