Adding and Subtracting Integers interactive exercise - Free Printable

Let’s solve each problem step by step. We’ll go row by row, left to right.

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Row 1:

8 + 10 = 18
10 + 9 = 19
2 - 5 = -3 (since 5 is bigger than 2, and we’re subtracting, answer is negative)

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Row 2:

7 + (-8) = -1 (adding a negative is like subtracting: 7 - 8 = -1)
16 ÷ (-4) = -4 (positive divided by negative = negative)
9 - (-11) = 20 (subtracting a negative is like adding: 9 + 11 = 20)

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Row 3:

7 + 6 = 13
8 × (-10) = -80 (positive times negative = negative)
4 - (-6) = 10 (again, minus negative = plus: 4 + 6 = 10)

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Row 4:

(-3) + 11 = 8 (start at -3, add 11 → move 11 steps right on number line)
(-2) + 5 = 3 (start at -2, add 5 → ends at 3)
20 ÷ (-2) = -10 (positive ÷ negative = negative)

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Row 5:

(-8) × 4 = -32 (negative × positive = negative)
(-9) × 6 = -54 (same rule)
(-1) × (-10) = 10 (negative × negative = positive)

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Row 6:

3 + (-11) = -8 (3 - 11 = -8)
1 × (-7) = -7 (positive × negative = negative)
1 - (-9) = 10 (minus negative = plus: 1 + 9 = 10)

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Row 7:

(-8) × (-4) = 32 (negative × negative = positive)
(-7) × (-3) = 21 (same rule)
8 + (-2) = 6 (8 - 2 = 6)

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Row 8:

35 ÷ 5 = 7
7 - 6 = 1
5 - (-3) = 8 (5 + 3 = 8)

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Row 9:

(-7) - 7 = -14 (start at -7, subtract 7 more → -14)
9 - 8 = 1
3 - (-6) = 9 (3 + 6 = 9)

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Row 10:

2 × 8 = 16
4 - 10 = -6 (10 > 4, so result is negative)
(-11) + 4 = -7 (start at -11, add 4 → -7)

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✔ All calculations checked.

Final Answer:
18, 19, -3,
-1, -4, 20,
13, -80, 10,
8, 3, -10,
-32, -54, 10,
-8, -7, 10,
32, 21, 6,
7, 1, 8,
-14, 1, 9,
16, -6, -7