5(10-1)

解答

5 (10 - 1)

45

求解步骤

5 (10 - 1)

遵循 PEMDAS 运算顺序

计算括号内的值

(10 - 1) : 9

10 - 1

10 - 1 = 9

= 9

= 5 \cdot 9

乘除（左右）

5 \cdot 9 : 45

5 \cdot 9

5 \cdot 9 = 45

= 45

= 45

\frac{2}{7} + (\frac{1}{3} + \frac{5}{8})

8 (3 - 5) - 2 ((- 3 (8 - 4) - 6 + (1 - 3)))

4 - \frac{11}{3} \div 4 - \frac{2}{3}

8 (1)^{2}

1 1^{2} - (7 + 5 - 9)^{2} + 12 - (33 + 2)