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受欢迎的初等代数 >

(15-7)+(6-1)-(9-6)+(19+8)-(3-1)+(4+5)

解答

(15 - 7) + (6 - 1) - (9 - 6) + (19 + 8) - (3 - 1) + (4 + 5)

解答

44

求解步骤

(15 - 7) + (6 - 1) - (9 - 6) + (19 + 8) - (3 - 1) + (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) - (3 - 1) + (4 + 5)

计算括号内的值

(6 - 1) : 5

6 - 1

6 - 1 = 5

= 5

= 8 + 5 - (9 - 6) + (19 + 8) - (3 - 1) + (4 + 5)

计算括号内的值

(9 - 6) : 3

9 - 6

9 - 6 = 3

= 3

= 8 + 5 - 3 + (19 + 8) - (3 - 1) + (4 + 5)

计算括号内的值

(19 + 8) : 27

19 + 8

19 + 8 = 27

= 27

= 8 + 5 - 3 + 27 - (3 - 1) + (4 + 5)

计算括号内的值

(3 - 1) : 2

3 - 1

3 - 1 = 2

= 2

= 8 + 5 - 3 + 27 - 2 + (4 + 5)

计算括号内的值

(4 + 5) : 9

4 + 5

4 + 5 = 9

= 9

= 8 + 5 - 3 + 27 - 2 + 9

加减（左右）

8 + 5 - 3 + 27 - 2 + 9 : 44

8 + 5 - 3 + 27 - 2 + 9

8 + 5 = 13

= 13 - 3 + 27 - 2 + 9

13 - 3 = 10

= 10 + 27 - 2 + 9

10 + 27 = 37

= 37 - 2 + 9

37 - 2 = 35

= 35 + 9

35 + 9 = 44

= 44

= 44

流行的例子

(2^2-2-2)/(2-2)

\frac{2 ^{2} - 2 - 2}{2 - 2}

2(5-2)^3-15\div 3+7

2 (5 - 2)^{3} - 15 \div 3 + 7

((-2)^3)/((-2)^2)

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

4 (- 3) - 2 (2)

2 - 4 (- 2)