Question

70:9 , 89:21, 66:13, 95:31 с проверкой

Answer 1

70 : 9 = 7 (ост. 7)
Проверка: 9 * 7 + 7 = 70

89 : 21 = 4 (ост. 5)
Проверка: 21 * 4 + 5 = 89

66 : 13 = 5 (ост. 1)
Проверка: 13 * 5 + 1 = 66

95 : 31 = 3 (ост. 2)
Проверка: 31 * 3 + 2 = 95

Answer 2

Calculation Results:

Let's calculate the given expressions:

1. 70:9: - According to the provided source, we can calculate 70 divided by 9 as follows: - 70 : 9 = (63 + 7) : 9 = 7 (.7) - 9 * 7 + 7 = 63 + 7 = 70 - Therefore, 70 divided by 9 is equal to 7.7.

2. 89:21: - Using the same method as above, we can calculate 89 divided by 21: - 89 : 21 = (84 + 5) : 21 = 4 (.5) - 21 * 4 + 5 = 84 + 5 = 89 - Thus, 89 divided by 21 is equal to 4.5.

3. 66:13: - Applying the same approach, we can calculate 66 divided by 13: - 66 : 13 = (65 + 1) : 13 = 5 (.1) - 13 * 5 + 1 = 65 + 1 = 66 - Hence, 66 divided by 13 is equal to 5.1.

4. 95:31: - Using the given method, we can calculate 95 divided by 31: - 95 : 31 = (93 + 2) : 31 = 3 (.2) - 31 * 3 + 2 = 93 + 2 = 95 - Therefore, 95 divided by 31 is equal to 3.2.

So, the results of the calculations are as follows: - 70:9 = 7.7 - 89:21 = 4.5 - 66:13 = 5.1 - 95:31 = 3.2

Please let me know if there's anything else I can help you with!