Sumar.
1 a. |
9 + 1 + (–8) = ______
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1 b. |
(–5) + (–4) + (–7) = ______
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2 a. |
(–7) + (–9) + 8 = ______
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3 a. |
(–20) + 10 + 9 = ______
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3 b. |
9 + 1 + (–10) = ______
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4 a. |
20 + (–4) + 8 = ______
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4 b. |
0 + 0 + (–3) = ______
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5 a. |
9 + (–7) + 7 = ______
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5 b. |
9 + 10 + (–7) = ______
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6 a. |
(–6) + 6 + 4 = ______
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6 b. |
18 + 6 + (–7) = ______
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7 a. |
(–12) + 8 + (–1) = ______
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7 b. |
(–15) + 2 + (–10) = ______
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8 a. |
(–15) + (–7) + 6 = ______
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8 b. |
(–12) + 6 + 1 = ______
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9 a. |
(–6) + (–5) + (–9) = ______
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10 a. |
12 + (–9) + (–1) = ______
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