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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