724+500-(18× 42)-(72× 2)

解答

724 + 500 - (18 \cdot 42) - (72 \cdot 2)

324

求解步骤

724 + 500 - (18 \cdot 42) - (72 \cdot 2)

遵循 PEMDAS 运算顺序

计算括号内的值

(18 \cdot 42) : 756

18 \cdot 42

18 \cdot 42 = 756

= 756

= 724 + 500 - 756 - (72 \cdot 2)

计算括号内的值

(72 \cdot 2) : 144

72 \cdot 2

72 \cdot 2 = 144

= 144

= 724 + 500 - 756 - 144

加减（左右）

724 + 500 - 756 - 144 : 324

724 + 500 - 756 - 144

724 + 500 = 1224

= 1224 - 756 - 144

1224 - 756 = 468

= 468 - 144

468 - 144 = 324

= 324

= 324

6 [24 - 2 (6)]^{2}

4 + 5 (7 - 3) \div 2

\frac{- 3}{1} (\frac{- 11}{3} + \frac{1}{1})

\frac{139}{6} (3)^{3}

(42 + 41) \times (11 + 8 + 25)