Відповіді зі сторінок 62 – 67
| Назад до стор. 63 | стор. 64 | Вперед до стор. 65 |
СТОРІНКА 64
Завдання 1
5 + 6 = 11 7 + 6 = (5 + 2) + 6 = 5 + 6 + 2 = 11 + 2 = 13
8 + 6 = 14 7 + 6 = (8 – 1) + 6 = 8 + 6 – 1 = 14 – 1 = 13
10 – 6 = 4 8 – 6 = (10 – 2) – 6 = 10 – 6 – 2 = 4 – 2 = 2
8 – 4 = 4 13 – 4 = (8 + 5) – 4 = 8 – 4 + 5 = 4 + 5 = 9
8 + 10 = 18 8 + 7 = 8 + (10 – 3) = 8 + 10 – 3 = 18 – 3 = 15
16 – 6 = 10 11 – 6 = (16 – 5) – 6 = 16 – 6 – 5 = 10 – 5 = 5
Завдання 2
11 – 4 = (7 + 4) – 4 = 7 + (4 – 4) = 7 11 – 4 = 11 – 1 – 3 = 10 – 3 = 7
Завдання 3
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11 – 2 = 11 – 1 – 1 = 9 11 – 3 = 11 – 2 – 1 = 9 – 1 = 8 11 – 4 = 11 – 3 – 1 = 8 – 1 = 7 11 – 5 = 11 – 4 – 1 = 7 – 1 = 6 11 – 6 = 11 – 5 – 1 = 6 – 1 = 5 11 – 7 = 11 – 6 – 1 = 5 – 1 = 4 11 – 8 = 11 – 7 – 1 = 4 – 1 = 3 11 – 9 = 11 – 8 – 1 = 3 – 1 = 2 |
12 – 3 = 12 – 2 – 1 = 9 12 – 4 = 12 – 3 – 1 = 9 – 1 = 8 12 – 5 = 12 – 4 – 1 = 8 – 1 = 7 12 – 6 = 12 – 5 – 1 = 9 – 1 = 6 12 – 7 = 12 – 6 – 1 = 6 – 1 = 5 12 – 8 = 12 – 7 – 1 = 5 – 1 = 4 12 – 9 = 12 – 8 – 1 = 4 – 1 = 3
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13 – 4 = 13 – 3 – 1 = 9 13 – 5 = 13 – 4 – 1 = 9 – 1 = 8 13 – 6 = 13 – 5 – 1 = 8 – 1 = 7 13 – 7 = 13 – 6 – 1 = 7 – 1 = 6 13 – 8 = 13 – 7 – 1 = 6 – 1 = 5 13 – 9 = 13 – 8 – 1 = 5 – 1 = 4 |
14 – 5 = 14 – 4 – 1 = 9 14 – 6 = 14 – 5 – 1 = 9 – 1 = 8 14 – 7 = 14 – 6 – 1 = 8 – 1 = 7 14 – 8 = 14 – 7 – 1 = 7 – 1 = 6 14 – 9 = 14 – 8 – 1 = 6 – 1 = 5
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15 – 6 = 15 – 5 – 1 = 9 15 – 7 = 15 – 6 – 1 = 9 – 1 = 8 15 – 8 = 15 – 7 – 1 = 8 – 1 = 7 15 – 9 = 15 – 8 – 1 = 7 – 1 = 6 |
16 – 7 = 16 – 6 – 1 = 9 16 – 8 = 16 – 7 – 1 = 9 – 1 = 8 16 – 9 = 16 – 8 – 1 = 8 – 1 = 7
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17 – 8 = 17 – 7 – 1 = 9 17 – 9 = 17 – 8 – 1 = 9 – 1 = 8 |
18 – 9 = 18 – 8 – 1 = 9
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