42+(12× 3)\div 2

解答

42 + (12 \times 3) \div 2

60

求解步骤

42 + (12 \times 3) \div 2

遵循 PEMDAS 运算顺序

计算括号内的值

(12 \times 3) : 36

12 \times 3

12 \times 3 = 36

= 36

= 42 + 36 \div 2

乘除（左右）

36 \div 2 : 18

36 \div 2

36 \div 2 = 18

= 18

= 42 + 18

加减（左右）

42 + 18 : 60

42 + 18

42 + 18 = 60

= 60

= 60

18 + 2 \times (5 - 9) - 3 (10 - 7)

(- 7)^{2} + 7^{2}

- 4 + 7 \times 7 - 48 \div (- 12)

\frac{4}{4 - ( - 9 + 9 )}

(0 - 6) (0 + 2)