7+(7+7)*7

解答

7 + (7 + 7) \cdot 7

105

求解步骤

7 + (7 + 7) \cdot 7

遵循 PEMDAS 运算顺序

计算括号内的值

(7 + 7) : 14

7 + 7

7 + 7 = 14

= 14

= 7 + 14 \cdot 7

乘除（左右）

14 \cdot 7 : 98

14 \cdot 7

14 \cdot 7 = 98

= 98

= 7 + 98

加减（左右）

7 + 98 : 105

7 + 98

7 + 98 = 105

= 105

= 105

(36 - 16) - [(3 \cdot 2) \div (2 \cdot 3)] - 2 \cdot 9

68 - (248 \div 8 + 13) + (81 - 56 + 13)

4 4^{2} + 6 0^{2}

250 + [7 - (2 + (4 - 1) - 3) - 2]

6 + (7 - 2) \times 4