50-45-10-45

解答

50 - 45 - 10 - 45

- 50

求解步骤

50 - 45 - 10 - 45

遵循 PEMDAS 运算顺序

加减（左右）

50 - 45 = 5

= 5 - 10 - 45

5 - 10 = - 5

= - 5 - 45

- 5 - 45 = - 50

= - 50

4 (9 + 7 - 3^{2})

50 - \frac{175}{2} + \frac{125}{3}

200 - 4 \cdot 50

15 - [20 - (16 - 8) - 10]

(- 6)^{3} \div 3^{2} \div [- 9 - (- 8)]^{3}