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Year 8 Integers (Directed Numbers) Worksheet — Level 1 — Practice Set 3 — 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 3 — Answers

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

1.(−3) − 5 = (answer space)

Answer: −8

Move 5 to the left on the number line.

2.9 − 10 = (answer space)

Answer: −1

Move 10 to the left on the number line.

3.8 − 1 = (answer space)

Answer: 7

Move 1 to the left on the number line.

4.10 − 9 = (answer space)

Answer: 1

Move 9 to the left on the number line.

5.(−6) + (−4) = (answer space)

Answer: −10

Adding a negative is the same as subtracting: -6 − 4 = -10

6.(−3) − (−5) = (answer space)

Answer: 2

Subtracting a negative is the same as adding: -3 + 5 = 2

7.3 − (−7) = (answer space)

Answer: 10

Subtracting a negative is the same as adding: 3 + 7 = 10

8.9 + 10 = (answer space)

Answer: 19

Move 10 to the right on the number line.

9.(−7) − (−2) = (answer space)

Answer: −5

Subtracting a negative is the same as adding: -7 + 2 = -5

10.4 + 5 = (answer space)

Answer: 9

Move 5 to the right on the number line.

11.(−9) + (−7) = (answer space)

Answer: −16

Adding a negative is the same as subtracting: -9 − 7 = -16

12.8 − (−8) = (answer space)

Answer: 16

Subtracting a negative is the same as adding: 8 + 8 = 16

13.(−4) + (−10) = (answer space)

Answer: −14

Adding a negative is the same as subtracting: -4 − 10 = -14

14.(−8) − 1 = (answer space)

Answer: −9

Move 1 to the left on the number line.

15.1 + (−9) = (answer space)

Answer: −8

Adding a negative is the same as subtracting: 1 − 9 = -8

16.2 − (−8) = (answer space)

Answer: 10

Subtracting a negative is the same as adding: 2 + 8 = 10

17.0 + (−5) = (answer space)

Answer: −5

Adding a negative is the same as subtracting: 0 − 5 = -5

18.(−8) − (−2) = (answer space)

Answer: −6

Subtracting a negative is the same as adding: -8 + 2 = -6

19.(−3) + (−5) = (answer space)

Answer: −8

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

20.8 + 6 = (answer space)

Answer: 14

Move 6 to the right on the number line.

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