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Year 9 Integers (Directed Numbers) Worksheet — Level 2 — 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 2 — Answers

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

1.6 + 7 = (answer space)

Answer: 13

Move 7 to the right on the number line.

2.16 × (−5) = (answer space)

Answer: −80

Different signs give a negative product.

3.(−4) × (−14) = (answer space)

Answer: 56

Same signs give a positive product.

4.(−6) − (−17) = (answer space)

Answer: 11

Subtracting a negative is the same as adding: -6 + 17 = 11

5.(−1) × 6 = (answer space)

Answer: −6

Different signs give a negative product.

6.3 − (−11) = (answer space)

Answer: 14

Subtracting a negative is the same as adding: 3 + 11 = 14

7.(−19) − 19 = (answer space)

Answer: −38

Move 19 to the left on the number line.

8.13 + 3 = (answer space)

Answer: 16

Move 3 to the right on the number line.

9.(−9) × (−17) = (answer space)

Answer: 153

Same signs give a positive product.

10.56 ÷ 14 = (answer space)

Answer: 4

Same signs give a positive quotient.

11.(−20) × (−15) = (answer space)

Answer: 300

Same signs give a positive product.

12.8 × (−12) = (answer space)

Answer: −96

Different signs give a negative product.

13.(−20) + 3 = (answer space)

Answer: −17

Move 3 to the right on the number line.

14.(−18) − 8 = (answer space)

Answer: −26

Move 8 to the left on the number line.

15.8 × 4 = (answer space)

Answer: 32

Same signs give a positive product.

16.2 × (−6) = (answer space)

Answer: −12

Different signs give a negative product.

17.20 × 1 = (answer space)

Answer: 20

Same signs give a positive product.

18.(−15) + 1 = (answer space)

Answer: −14

Move 1 to the right on the number line.

19.19 × 4 = (answer space)

Answer: 76

Same signs give a positive product.

20.95 ÷ 19 = (answer space)

Answer: 5

Same signs give a positive quotient.

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