(40-30)\div (10-5)

解答

(40 - 30) \div (10 - 5)

2

求解步骤

(40 - 30) \div (10 - 5)

遵循 PEMDAS 运算顺序

计算括号内的值

(40 - 30) : 10

40 - 30

40 - 30 = 10

= 10

= 10 \div (10 - 5)

计算括号内的值

(10 - 5) : 5

10 - 5

10 - 5 = 5

= 5

= 10 \div 5

乘除（左右）

10 \div 5 : 2

10 \div 5

10 \div 5 = 2

= 2

= 2

50 - 5 + 3

(5 - 3) - (- 2 - 5) / (2 + (- 1 + 4)) + (- 2 + 3) (- 1 + 3)

- 6^{2} + 4

- 6^{2} + 9

\frac{( - 3 ) ^{2} - 9}{- 3 + 3}