Question

1) Найди значения Выражений. 912-702:6 819:9-76+12 2) С помощью скобок получи новые выражения, имеющие другие значения

Answer 1

1) 912-702:6=912-117=795
819:9-76+12=91-76+12=27

Answer 2

Значения выражений:

1) 912 - 702 ÷ 6

To find the value of this expression, we need to perform the division first and then subtract the result from 912.

912 - 702 ÷ 6 = 912 - (702 ÷ 6)

To calculate 702 ÷ 6, we divide 702 by 6:

702 ÷ 6 = 117

Now we substitute this result back into the original expression:

912 - 117 = 795

Therefore, the value of the expression 912 - 702 ÷ 6 is 795.

2) 819 ÷ 9 - 76 + 12

To find the value of this expression, we need to perform the division first, then the subtraction, and finally the addition.

819 ÷ 9 = 91

Now we substitute this result back into the expression:

91 - 76 + 12 = 27

Therefore, the value of the expression 819 ÷ 9 - 76 + 12 is 27.

Выражения с помощью скобок:

1) (912 - 702):6

By adding parentheses around the subtraction operation, we change the order of operations. Now, we subtract 702 from 912 first and then divide the result by 6.

(912 - 702):6 = (210):6

To calculate (210):6, we divide 210 by 6:

210 ÷ 6 = 35

Therefore, the value of the expression (912 - 702):6 is 35.

2) 819 ÷ (9 - 76) + 12

By adding parentheses around the subtraction operation, we change the order of operations. Now, we subtract 9 from 76 first and then divide 819 by the result.

819 ÷ (9 - 76) = 819 ÷ (-67)

To calculate 819 ÷ (-67), we divide 819 by -67:

819 ÷ (-67) ≈ -12.22

Therefore, the value of the expression 819 ÷ (9 - 76) + 12 is approximately -12.22.

Please note that the values of the expressions with parentheses may differ depending on the interpretation of the operations and the rules of mathematical precedence.