Free Printable 7th Grade Integers Worksheets [PDFs] Brighterly - Free Printable

Let's solve each of the integer addition problems step by step. The key rules for adding integers are:

1. Same signs: Add the absolute values and keep the common sign.
2. Different signs: Subtract the smaller absolute value from the larger one, and take the sign of the number with the larger absolute value.

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Solutions:

1) 8 + 20
Both positive → 8 + 20 = 28

2) (-15) + (-3)
Both negative → -(15 + 3) = -18

3) 17 + (-19)
Different signs → 19 - 17 = 2, and since 19 is larger and negative → -2

4) (-6) + 20
Different signs → 20 - 6 = 14, and 20 is larger and positive → 14

5) (-11) + 4
Different signs → 11 - 4 = 7, and 11 is larger and negative → -7

6) 18 + (-17)
Different signs → 18 - 17 = 1, and 18 is larger and positive → 1

7) (-7) + (-10)
Both negative → -(7 + 10) = -17

8) 10 + 2
Both positive → 10 + 2 = 12

9) 4 + (-16)
Different signs → 16 - 4 = 12, and 16 is larger and negative → -12

10) (-1) + (-14)
Both negative → -(1 + 14) = -15

11) 15 + 9
Both positive → 15 + 9 = 24

12) (-8) + 16
Different signs → 16 - 8 = 8, and 16 is larger and positive → 8

13) (-12) + 14
Different signs → 14 - 12 = 2, and 14 is larger and positive → 2

14) 13 + (-9)
Different signs → 13 - 9 = 4, and 13 is larger and positive → 4

15) (-18) + (-5)
Both negative → -(18 + 5) = -23

16) (-20) + 11
Different signs → 20 - 11 = 9, and 20 is larger and negative → -9

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✔ Final Answers:

1) 28
2) -18
3) -2
4) 14
5) -7
6) 1
7) -17
8) 12
9) -12
10) -15
11) 24
12) 8
13) 2
14) 4
15) -23
16) -9

Let me know if you'd like this in a printable format or need help with subtraction of integers too!