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受欢迎的初等代数 >

(15-7)+(6-1)+(9-6)+(19+8)+(4+5)

解答

(15 - 7) + (6 - 1) + (9 - 6) + (19 + 8) + (4 + 5)

解答

52

求解步骤

(15 - 7) + (6 - 1) + (9 - 6) + (19 + 8) + (4 + 5)

遵循 PEMDAS 运算顺序

计算括号内的值

(15 - 7) : 8

15 - 7

15 - 7 = 8

= 8

= 8 + (6 - 1) + (9 - 6) + (19 + 8) + (4 + 5)

计算括号内的值

(6 - 1) : 5

6 - 1

6 - 1 = 5

= 5

= 8 + 5 + (9 - 6) + (19 + 8) + (4 + 5)

计算括号内的值

(9 - 6) : 3

9 - 6

9 - 6 = 3

= 3

= 8 + 5 + 3 + (19 + 8) + (4 + 5)

计算括号内的值

(19 + 8) : 27

19 + 8

19 + 8 = 27

= 27

= 8 + 5 + 3 + 27 + (4 + 5)

计算括号内的值

(4 + 5) : 9

4 + 5

4 + 5 = 9

= 9

= 8 + 5 + 3 + 27 + 9

加减（左右）

8 + 5 + 3 + 27 + 9 : 52

8 + 5 + 3 + 27 + 9

8 + 5 = 13

= 13 + 3 + 27 + 9

13 + 3 = 16

= 16 + 27 + 9

16 + 27 = 43

= 43 + 9

43 + 9 = 52

= 52

= 52

流行的例子

\frac{1}{3} (- 1)^{2}

1/2 \div [-2/3+5/6 ]

\frac{1}{2} \div [- \frac{2}{3} + \frac{5}{6}]

(-6)^2-4× 1× (16)

(- 6)^{2} - 4 \times 1 \times (16)

- 4 + (- 12) + (- 6)

2 + 5 (44 - 1)