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Year 9 Integers (Directed Numbers) Worksheet — Level 1 — Answers

Answer sheet with worked solutions for the Year 9 integers worksheet.

Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · Integers

Year 9 Integers (Directed Numbers) Worksheet — Level 1 — Answers

Remember the sign rules. Use a number line if it helps.

1.3 + 1 = (answer space)

Answer: 4

Move 1 to the right on the number line.

2.9 − (−4) = (answer space)

Answer: 13

Subtracting a negative is the same as adding: 9 + 4 = 13

3.(−10) + 3 = (answer space)

Answer: −7

Move 3 to the right on the number line.

4.(−10) − 4 = (answer space)

Answer: −14

Move 4 to the left on the number line.

5.9 − (−8) = (answer space)

Answer: 17

Subtracting a negative is the same as adding: 9 + 8 = 17

6.1 + 4 = (answer space)

Answer: 5

Move 4 to the right on the number line.

7.(−4) − (−10) = (answer space)

Answer: 6

Subtracting a negative is the same as adding: -4 + 10 = 6

8.(−1) − 1 = (answer space)

Answer: −2

Move 1 to the left on the number line.

9.8 + 5 = (answer space)

Answer: 13

Move 5 to the right on the number line.

10.(−2) − 9 = (answer space)

Answer: −11

Move 9 to the left on the number line.

11.(−2) − (−3) = (answer space)

Answer: 1

Subtracting a negative is the same as adding: -2 + 3 = 1

12.(−3) + (−5) = (answer space)

Answer: −8

Adding a negative is the same as subtracting: -3 − 5 = -8

13.6 + 2 = (answer space)

Answer: 8

Move 2 to the right on the number line.

14.10 − (−5) = (answer space)

Answer: 15

Subtracting a negative is the same as adding: 10 + 5 = 15

15.(−10) + 6 = (answer space)

Answer: −4

Move 6 to the right on the number line.

16.10 + 10 = (answer space)

Answer: 20

Move 10 to the right on the number line.

17.(−7) + (−7) = (answer space)

Answer: −14

Adding a negative is the same as subtracting: -7 − 7 = -14

18.3 + (−1) = (answer space)

Answer: 2

Adding a negative is the same as subtracting: 3 − 1 = 2

19.(−3) − 3 = (answer space)

Answer: −6

Move 3 to the left on the number line.

20.(−9) + 7 = (answer space)

Answer: −2

Move 7 to the right on the number line.

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