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МатематикаВопрос:
5. Calculate in columns: 368 + 269 316 - 284 298 * 3 623 : 7
Ответ:
Решение:
1. Сложение:
| 3 | 6 | 8 | |
|---|---|---|---|
| + | 2 | 6 | 9 |
| 6 | 3 | 7 |
2. Вычитание:
| 3 | 1 | 6 | |
|---|---|---|---|
| - | 2 | 8 | 4 |
| 3 | 2 |
3. Умножение:
| 2 | 9 | 8 | |
|---|---|---|---|
| × | 3 | ||
| 8 | 9 | 4 |
4. Деление:
| 6 | 2 | 3 | : | 7 |
|---|---|---|---|---|
| - | 5 | 6 | 8 | |
| 6 | 3 | |||
| - | 6 | 3 | ||
| 0 |
Ответ: 637; 32; 894; 89 (остаток 0).
Похожие
- 4. Calculate: 60 * (19 - 14) + 51 = 63 99 : (64 : 2 + 37) = 8 + (52 : 2 + 4) = 38 55 - 90 : (27 : 3 + 18) = 45
- 6. Perform division with remainder: 23 : 6 = 10 (remainder 5) 67 : 9 = 63 (remainder 4) 71 : 17 = 4 (remainder 3)
- 7. Solve the equations: 329 + x = 754 6 * x = 96 x : 3 = 18
- 8. Peter is standing by a barrel with a capacity of 50 liters. He needs to fill this barrel. He has a bucket with a capacity of 5 liters. To fill the bucket with water from the well, Peter takes 1 minute, to carry the bucket of water from the well to the barrel and pour it in - 3 minutes. The trip to the well takes 2 minutes.
- 1. How many full buckets of water did Peter pour into the barrel to fill it?
- 2. How much time did Peter spend on the entire job?
- 3. At what time did Peter finish the entire job if he started at 10:10 AM?
- 9. Write the names of all equilateral and all obtuse triangles.
