(4× 10)+(5× 100)

解答

(4 \cdot 10) + (5 \cdot 100)

540

求解步骤

(4 \cdot 10) + (5 \cdot 100)

遵循 PEMDAS 运算顺序

计算括号内的值

(4 \cdot 10) : 40

4 \cdot 10

4 \cdot 10 = 40

= 40

= 40 + (5 \cdot 100)

计算括号内的值

(5 \cdot 100) : 500

5 \cdot 100

5 \cdot 100 = 500

= 500

= 40 + 500

加减（左右）

40 + 500 : 540

40 + 500

40 + 500 = 540

= 540

= 540

- 5 - 6 \times \frac{11}{3}

- 25 - (2 - 3 \cdot 4) + 8

(2 \times 3 - 5) + (36 \div 3 \times 2)

\frac{14 - 2 \times 3 + 12}{9 - 6 + 1}

(0 - 3)^{2} - 4