Sumar.
| 1 a. |
(–1) + (–8) + (–2) = ______
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| 1 b. |
(–2) + 7 + 4 = ______
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| 2 b. |
(–20) + 3 + 2 = ______
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| 3 a. |
(–12) + (–9) + (–7) = ______
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| 3 b. |
(–19) + 4 + 8 = ______
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| 4 a. |
(–1) + 4 + 3 = ______
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| 5 a. |
18 + (–2) + 1 = ______
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| 5 b. |
15 + (–4) + 10 = ______
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| 6 a. |
2 + (–7) + 0 = ______
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| 6 b. |
14 + 8 + (–9) = ______
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| 7 a. |
16 + (–2) + 6 = ______
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| 7 b. |
9 + 6 + (–7) = ______
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| 8 b. |
11 + (–4) + (–10) = ______
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| 9 a. |
3 + 7 + (–1) = ______
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| 9 b. |
13 + (–10) + (–7) = ______
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| 10 a. |
9 + (–9) + (–6) = ______
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| 10 b. |
16 + 1 + (–3) = ______
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