-3+4-20+19-33

解答

- 3 + 4 - 20 + 19 - 33

- 33

求解步骤

- 3 + 4 - 20 + 19 - 33

遵循 PEMDAS 运算顺序

加减（左右）

- 3 + 4 = 1

= 1 - 20 + 19 - 33

1 - 20 = - 19

= - 19 + 19 - 33

- 19 + 19 = 0

= 0 - 33

0 - 33 = - 33

= - 33

- (- 2 - 4)

(2)^{2} + 6 (2) + 11

(25 \times 3 - 12 \div 4 + 4 - 20)^{0}

7 + 3 - 3

4 + (9 + 2^{2} + 2)