Adding Integers worksheet with 16 math problems for practice.

Let’s solve each problem step by step. We’re adding integers — that means positive and negative numbers. Remember:

- If both numbers are positive, just add them.
- If both are negative, add their absolute values and keep the negative sign.
- If one is positive and one is negative, subtract the smaller absolute value from the larger one, and take the sign of the number with the bigger absolute value.

Now let’s go through each problem:

1) 8 + 20 → Both positive → 8 + 20 = 28

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

3) 17 + (-19) → One positive, one negative → Subtract: 19 - 17 = 2 → Bigger absolute value is 19 (negative) → -2

4) (-6) + 20 → One negative, one positive → Subtract: 20 - 6 = 14 → Bigger absolute value is 20 (positive) → 14

5) (-11) + 4 → One negative, one positive → Subtract: 11 - 4 = 7 → Bigger absolute value is 11 (negative) → -7

6) 18 + (-17) → One positive, one negative → Subtract: 18 - 17 = 1 → Bigger absolute value is 18 (positive) → 1

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

8) 10 + 2 → Both positive → 10 + 2 = 12

9) 4 + (-16) → One positive, one negative → Subtract: 16 - 4 = 12 → Bigger absolute value is 16 (negative) → -12

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

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

12) (-8) + 16 → One negative, one positive → Subtract: 16 - 8 = 8 → Bigger absolute value is 16 (positive) → 8

13) (-12) + 14 → One negative, one positive → Subtract: 14 - 12 = 2 → Bigger absolute value is 14 (positive) → 2

14) 13 + (-9) → One positive, one negative → Subtract: 13 - 9 = 4 → Bigger absolute value is 13 (positive) → 4

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

16) (-20) + 11 → One negative, one positive → Subtract: 20 - 11 = 9 → Bigger absolute value is 20 (negative) → -9

Final Answer:
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