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МатематикаВопрос:
32. Заполни таблицу. a a: 3+20 (a+3)-3 0.5+7 10-0-40 α. (6+2) 6 9 12 15 21 18 60 30
Ответ:
Краткое пояснение: Подставляем значения a в выражения и вычисляем значения в таблице.
| a | 6 | 9 | 12 | 15 | 21 | 18 | 60 | 30 |
|---|---|---|---|---|---|---|---|---|
| a: 3+20 | 6 : 3 + 20 = 2 + 20 = 22 | 9 : 3 + 20 = 3 + 20 = 23 | 12 : 3 + 20 = 4 + 20 = 24 | 15 : 3 + 20 = 5 + 20 = 25 | 21 : 3 + 20 = 7 + 20 = 27 | 18 : 3 + 20 = 6 + 20 = 26 | 60 : 3 + 20 = 20 + 20 = 40 | 30 : 3 + 20 = 10 + 20 = 30 |
| (a+3)-3 | (6 + 3) - 3 = 9 - 3 = 6 | (9 + 3) - 3 = 12 - 3 = 9 | (12 + 3) - 3 = 15 - 3 = 12 | (15 + 3) - 3 = 18 - 3 = 15 | (21 + 3) - 3 = 24 - 3 = 21 | (18 + 3) - 3 = 21 - 3 = 18 | (60 + 3) - 3 = 63 - 3 = 60 | (30 + 3) - 3 = 33 - 3 = 30 |
| a⋅5+7 | 6 ⋅ 5 + 7 = 30 + 7 = 37 | 9 ⋅ 5 + 7 = 45 + 7 = 52 | 12 ⋅ 5 + 7 = 60 + 7 = 67 | 15 ⋅ 5 + 7 = 75 + 7 = 82 | 21 ⋅ 5 + 7 = 105 + 7 = 112 | 18 ⋅ 5 + 7 = 90 + 7 = 97 | 60 ⋅ 5 + 7 = 300 + 7 = 307 | 30 ⋅ 5 + 7 = 150 + 7 = 157 |
| 10⋅a-40 | 10 ⋅ 6 - 40 = 60 - 40 = 20 | 10 ⋅ 9 - 40 = 90 - 40 = 50 | 10 ⋅ 12 - 40 = 120 - 40 = 80 | 10 ⋅ 15 - 40 = 150 - 40 = 110 | 10 ⋅ 21 - 40 = 210 - 40 = 170 | 10 ⋅ 18 - 40 = 180 - 40 = 140 | 10 ⋅ 60 - 40 = 600 - 40 = 560 | 10 ⋅ 30 - 40 = 300 - 40 = 260 |
| a⋅ (6+2) | 6 ⋅ (6 + 2) = 6 ⋅ 8 = 48 | 9 ⋅ (6 + 2) = 9 ⋅ 8 = 72 | 12 ⋅ (6 + 2) = 12 ⋅ 8 = 96 | 15 ⋅ (6 + 2) = 15 ⋅ 8 = 120 | 21 ⋅ (6 + 2) = 21 ⋅ 8 = 168 | 18 ⋅ (6 + 2) = 18 ⋅ 8 = 144 | 60 ⋅ (6 + 2) = 60 ⋅ 8 = 480 | 30 ⋅ (6 + 2) = 30 ⋅ 8 = 240 |
