5-3 3 4 8.5 0.75 7.5

2020-12-03 21:46:42 字数 4306 阅读 3759

1楼:

8×75%-3÷3/4

=8×3/4-4

=6-4

=28.5×0.75+7.5×75%

=8.5×0.75+7.5×0.75

=0.75×(8.5+7.5)

=3/4×16

=125/8-5/6×(1/4-25%)

=5/8-5/6×(1/4-1/4)

=5/8-5/6×0

=5/8-0

=5/8

如果帮到你,请记得采纳,o(∩_∩)o谢谢

1/8x9/7+5/7÷8能简算的要简算

2楼:提莫送你超神

1/8x9/7+5/7÷8可以先将里面的5/7÷8化成5/7×1/81/8x9/7+5/7×1/8

=1/8×(9/7+5/7)

=1/8×16/7

=2/7

3楼:凌月霜丶

1/8x9/7+5/7÷8能简算的要简算

1/8x9/7+5/7÷8

=1/8*(9/7+5/7)

=1/8*16/7

=2/7

4楼:张zq芹

1/8x9/7+5/7÷8

=1/8x(9/7+5/7)

=1/8x16/7

=2/7提取相同的因数,加数相加

8*75%-3/4/3-3/4怎么脱式计算

5楼:瀛洲烟雨

=8×3/4-3/4×1/3-3/4

=6-(1/4+3/4)

=6-1=5

3/4÷[(25%+3/5)-75%]简便计算?

6楼:七色彩虹之毛毛

解:3/4÷[(百分之25+3/5)-百分之75]等于( 15/2 ),【即等于7.5】

∵已知需求出3/4÷[(25%+3/5)-75%]等于多少

∴3/4 ÷ [(25% + 3/5) - 75%]

= 3/4 ÷ (25/100 + 3/5 - 75/100)

= 3/4 ÷ (1/4 + 3/5 - 3/4)

= 3/4 ÷ (1/4 - 3/4 + 3/5)

= 3/4 ÷ (-2/4 + 3/5)

= 3/4 ÷ (-1/2 + 3/5)

= 3/4 ÷ (-5/10 + 6/10)

= 3/4 ÷ 1/10

= 3/4 × 10

= 15/2

= 7.5

答:3/4÷[(百分之25+3/5)-百分之75]等于15/2,【即等于7.5】

7楼:妙酒

3/4÷[(25%+3/5)-75%]

=3/4÷(1/4+3/5-3/4)

=3/4÷【3/5-(3/4-1/4)】

=3/4÷(3/5-1/2)

=3/4÷1/10

=15/2

3/4+3/4×5/8-3/8×0.75用简便方法计算。

8楼:匿名用户

0.75化成 分数为3/4

原式=3/4+3/4x 5/8-3/8x3/4 (提取公因式3/4)

=3/4(1+5/8-3/8) (将括号内的进行加减计算)=3/4x4/5 (约分)

=3/5

9楼:日月同辉

3/4+3/4×5/8-3/8×0.75

=3/4+3/4×5/8-3/8×3/4

=3/4x(1+5/8-3/8)

=3/4x(1+1/4)

=3/4x5/4

=15/16

10楼:狠寂寞丶小幸运

可以看到0.75=3/4所以得到3/4+6/32=30/32=15/16

计算。(能简算的要简算) 7.5-2/3÷1/4-4/3 80%×3/4÷4/5

11楼:匿名用户

7.5-2/3÷1/4-4/3

=7.5-2/3x4-4/3

=7.5-8/3-4/3

=7.5-(8/3+4/3)

=7.5-4

=3.5

80%×3/4÷4/5

=4/5÷4/5x3/4

=1x3/4

=3/4

3/4×3/4+1/4×0.75-75% 简便计算

12楼:网际超人

3/4×3/4+1/4×0.75-75%

=3/4×3/4+1/4×3/4-3/4

=3/4×(3/4+1/4)-3/4

=3/4-3/4=0

13楼:镜

0.75=3/4

75%=3/4

3/4×3/4+1/4×0.75-75%

=3/4×3/4+1/4×3/4-3/4

=3/4x(3/4+1/4-1)=0

25/7.5竖式这个要竖式的

14楼:四级三进

45.55-

(6.82+15.55)

34.52-17.87-12.23

6.43-(1.4-0.57)

23.75-8.64-3.46

17.83-9.5-7.83-0.5

5.38+88.2-2.38+1.8

27.38-5.34+2.62-4.66

21.63-(8.5+9.63)

7.5-2.45+7.5+2.45

5.09-(0.09+1.23)

9.36-(4.36-3.5)

609-708+306-108+202-198+497-10099999×26+33333×22

19175÷59+678

1.3-3.79+9.7-6.21

8×0.4×12.5×2.5

125×(8+0.8+0.08)

35 ÷〔78-(25+38)〕

3.35×6.4×2+6.7×3.6

18.7-3.375-6.625

25×1.25×32

1.28+9.8+7.72+10.2

12 ×1951 +12×2049

0.64×25×7.8+2.2

2÷2.5+2.5÷2

194-64.8÷1.8×0.9

36.72÷4.25×9.9

5180-705×6

24÷2.4-2.5×0.8

671×15-974

469×12+1492

405×(3213-3189)

12*(1/2+2/3+5/6)

1.25×17.6+36.1÷0.8+2.63×12.57.5× 2.3+1.9×2.5

1999+999×999

75÷〔138÷(100-54)〕

80400-(4300+870÷15)

240×78÷(154-115)

1437×27+27×563

〔75-(12+18)〕÷15

2160÷〔(83-79)×18〕

325÷13×(266-250)

58870÷(105+20×2)

[37.85-(7.85+6.4)] ×30[192-(54+38)]×67

[(7.1-5.6)×0.9-1.15]÷2.5[60-(9.5+28.9)]÷0.18

20×[(2.44-1.8)÷0.4+0.15]0.8×[(10-6.76)÷1.2]

25%-695%-12%)*36

3/4*3/5+3/4*2/5

(1-1/4+8/9)/7/9

2/3+1/6/3/24+2/21

1*8/15*3/5

10-3/4/9/10-1/6

[(1/3+1/2)/5/6-1/3]/1/72/3/5+3/5/2+3/4

1/[(2-2/3/1/2)]*2/5

3^2*3.25678

3^3-5

4^2-34%

3.25-315%

7^3+445%

12+5268.32-2569

123+456-52*8

45%+6325

1/2+1/3+1/4

789+456-78

45%+54%-36%

15楼:匿名用户

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