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Year 8 Integers (Directed Numbers) Worksheet — Level 1 — Practice Set 4 — Answers

Answer sheet with worked solutions for the Year 8 integers worksheet.

Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Integers

Year 8 Integers (Directed Numbers) Worksheet — Level 1 — Practice Set 4 — Answers

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

1.(−2) + (−9) = (answer space)

Answer: −11

Adding a negative is the same as subtracting: -2 − 9 = -11

2.(−3) + (−7) = (answer space)

Answer: −10

Adding a negative is the same as subtracting: -3 − 7 = -10

3.(−3) − (−2) = (answer space)

Answer: −1

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

4.(−5) + 2 = (answer space)

Answer: −3

Move 2 to the right on the number line.

5.(−10) + 8 = (answer space)

Answer: −2

Move 8 to the right on the number line.

6.3 − (−9) = (answer space)

Answer: 12

Subtracting a negative is the same as adding: 3 + 9 = 12

7.(−9) − 2 = (answer space)

Answer: −11

Move 2 to the left on the number line.

8.(−9) − (−2) = (answer space)

Answer: −7

Subtracting a negative is the same as adding: -9 + 2 = -7

9.4 + (−8) = (answer space)

Answer: −4

Adding a negative is the same as subtracting: 4 − 8 = -4

10.4 + (−4) = (answer space)

Answer: 0

Adding a negative is the same as subtracting: 4 − 4 = 0

11.7 + (−4) = (answer space)

Answer: 3

Adding a negative is the same as subtracting: 7 − 4 = 3

12.(−9) + (−6) = (answer space)

Answer: −15

Adding a negative is the same as subtracting: -9 − 6 = -15

13.10 − 3 = (answer space)

Answer: 7

Move 3 to the left on the number line.

14.(−9) − (−7) = (answer space)

Answer: −2

Subtracting a negative is the same as adding: -9 + 7 = -2

15.7 − (−9) = (answer space)

Answer: 16

Subtracting a negative is the same as adding: 7 + 9 = 16

16.3 + 3 = (answer space)

Answer: 6

Move 3 to the right on the number line.

17.5 − (−9) = (answer space)

Answer: 14

Subtracting a negative is the same as adding: 5 + 9 = 14

18.(−6) + (−9) = (answer space)

Answer: −15

Adding a negative is the same as subtracting: -6 − 9 = -15

19.(−6) + 2 = (answer space)

Answer: −4

Move 2 to the right on the number line.

20.(−1) + 6 = (answer space)

Answer: 5

Move 6 to the right on the number line.

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