1樓:新野旁觀者
31又9/25+21又3/7-15又9/25-(-14又4/7)=(31又9/25-15又9/25)+(21又3/7+14又4/7)=16+36
=528^專2016x(-0.125)^2017=-8^2016x0.125^2017
=-(8×屬0.125)^2016x0.125=-1^2016×0.125
=-0.125
脫式計算,能簡算的要簡算 7/12+(7/8-3/4) 16/25-(14/19-9/25
2樓:匿名使用者
7/12+(7/8-6/8)=7/12+1/8=14/24+3/24=17/24
16/25-(14/19-9/25)=16/25+9/25-14/19=1-14/19=5/19
7/10-1/4+3/10-3/4 2- 3/5+1/4=7/10+3/10-3/4 2- 3/5=1-3/4 2- 3/5
=39/42-3/5
=195/210-126/210
=69/210
=23/70
計算[(3又8/3)^-2/3-(5又4/9)^0.5+(0.008)^-2/3÷(0.02)^-1/2×(0.32)^1/2]÷0.0625^0.25
3樓:新野旁觀者
[(3又3/8)^du
zhi-2/3-(dao5又4/9)^0.5+(0.008)^-2/3÷
回(0.02)^-1/2×(答0.32)^1/2]÷0.0625^0.25
=[4/9-7/3+25÷(50×0.32)^1/2]÷0.5=[-17/9+25×4]÷0.5
=200-34/9
=196又2/9
4樓:曉光流月
^原式=[(8/27)^2/3-(49/9)^1/2+(1000/8)^2/3÷√50×
4√2/10]÷(625/10000)^1/4=[4/9-7/3+25×1/5√2×4√2/10]÷1/2=(-17/9+2)×2
=2/9
5樓:匿名使用者
^^^[(3又3/8)^bai
du-2/3-(5又zhi4/9)^dao0.5+(0.008)^-2/3÷
專(0.02)^-1/2×屬(0.32)^1/2]÷0.0625^0.25
=[4/9-7/3+25÷(50×0.32)^1/2]÷0.5=[-17/9+25×4]÷0.5
=200-34/9
=196又2/9
6樓:匿名使用者
^^[(3又3/8)^-2/3-(回5又4/9)^0.5+(0.008)^-2/3÷答(0.02)^-1/2×(0.32)^1/2]÷0.0625^0.25
=[4/9-7/3+25÷(50×0.32)^1/2]÷0.5=[-17/9+25×4]÷0.5
=200-34/9
=196又2/9
簡便計算: 1. 3.625÷5/32+6又2/5×3/8+6.4 2. 45÷5/8+1.6+4.4×1又3/5 3. 8/9×【3/4-(7/16-0.25)】
7樓:匿名使用者
1. 3.625÷5/32+6又2/5×3/8+6.4=3.625×32/5+
6.4×3/8+6.4×1
=3.625×6.4+6.4×0.375+6.4×1=6.4×(3.625+0.375+1)
=6.4×5
=322. 45÷5/8+1.6+4.
4×1又3/5=45×8/5+1.6×1+4.4×1.
6=45×1.6+1.6×1+4.
4×1.6=1.6×(45+1+4.
4)=1.6×50.4
=1.6×(50+0.4)
=1.6×50+1.6×0.4
=80+0.64
=80.64
3. 8/9×【3/4-(7/16-0.25)】=8/9×【3/4-(7/16-1/4)】=8/9×【3/4-7/16+1/4】
=8/9×【3/4+1/4-7/16】
=8/9×【1-7/16】
=8/9×9/16
=1/2
4. 6.3×29又4/5+2.98×37=6.3×29.8+2.98×37
=63×2.98+2.98×37
=2.98×(63+37)
=2.98×100
=298
5. 3.6×31又2/5+314×0.
63+3.14=3.6×31.
4+314×0.63+3.14=36×3.
14+3.14×63+3.14×1=3.
14×(36+63+1)
=3.14×100
=314
6. 72×61又3/10+73.8*2又4/5=72×61.3+73.8×2.8
=72×61.3+(72×1.025×2.8)=72×61.3+72×(1.025×2.8)=72×61.3+72×2.87
=72×(61.3+2.87)
=72×64.17
=4620.24
7. 1/5+51/5+501/5+5001/5+50001/5=1/5+10又1/5+100又1/5+1000又1/5+10000又1/5
=(10+100+1000+10000)+(1/5+1/5+1/5+1/5+1/5)
=11110+1
=11111
8樓:妙酒
1. 3.625÷5/32+6又2/5×3/8+6.4=3又5/8x32/5+32/5x3/8+6.4=(3又5/8+3/8)x6.4+6.4
=4x6.4+6.4
=(4+1)x6.4
=5x6.4
=322. 45÷5/8+1.6+4.4×1又3/5=45x8/5+8/5+4.4x8/5
=(45+1+4.4)x8/5
=(50+0.4)x8/5
=50x8/5+0.4x8/5
=80+0.64
=80.64
3. 8/9×【3/4-(7/16-0.25)】=8/9x(3/4-7/16+1/4)
=8/9x(1-7/16)
=8/9x9/16
=1/2
4. 6.3×29又4/5+2.98×37=6.3x29.8+29.8x0.1x37=29.8x(6.3+3.7)
=29.8x10
=298
5. 3.6×31又2/5+314×0.
63+3.14=3.6x31.
4+31.4x10x0.63+31.
4x0.1=31.4x(3.
6+6.3+0.1)
=31.4x10
=314
6. 72×61又3/10+73.8*2又4/5=72x61.3+73.8x2.8
=4413.6+206.64
=4620.24
7. 1/5+51/5+501/5+5001/5+50001/5=1/5+10又1/5+100又1/5+1000又1/5+10000又1/5
=10000+1000+100+10+1/5x5=11111
9樓:圍觀者
1.原式=3.625*(32/5)+(32/5)*0.375+32/5=(32/5)*(3.625+0.375+1)=(32/5)*5=32
2.原式=45*(8/5)+8/5+4.4*(8/5)=(8/5)*(45+1+4.4)=80.64
3.原式=8/9 *(3/4-7/16+1/4)=8/9 * 9/16=1/2
4.原式=6.3*29.8+2.98*37=2.98*(63+37)=2.98*100=298
5.原式=3.6*31.4+314*0.63+3.14=3.14*(36+63+1)=3.14*100=314
6.題沒抄錯吧
7.原式=1/5+10+1/5+100+1/5+1000+1/5+10000+1/5=11111
9又14/25×(-15)-(2.5+1/8-3又1/2+1又7/8).要解釋計算過程
10樓:新野旁觀者
9又14/25×(-15)-(2.5+1/8-3又1/2+1又7/8)
=(10-1/25)×(-15)-(2.5-3又1/2)-(1/8+1又7/8)
=-10×15+1/25×15+1-2
=-150+3/5-1
=-150.4
11樓:123456傳
=239/25×(-15)-(21/8-7/2+15/8)=-717/5-1
=-722/5
百分百自己寫的
12樓:匿名使用者
給分吧,為了寫個分數,搞了半天
解方程 3.25+4又1/2-x=5又5/18 x+3又9/14=5.375 x-7又4/5=4又2/7 3/4-0.6+x=1又1/20 8-x=7.5-3又2/3
13樓:新野旁觀者
3.25+4又
1/2-x=5又5/18
7又3/4-x=5又5/18
x=7又3/4-5又5/18
x=2又17/36
x+3又9/14=5.375
x=5又3/8-3又9/14
x=1又41/56
x-7又4/5=4又2/7
x=4又2/7+7又4/5
x=12又3/35
3/4-0.6+x=1又1/20
0.15+x=1.05
x=1.05-0.15
x=0.9
8-x=7.5-3又2/3
x=8-7.5+3又2/3
x=1/2+3又2/3
x=4又1/6
14樓:qeqe的企鵝
3.25+4又
du1/2-x=5又zhi5/18
7又dao3/4-x=5又5/18
x=7又3/4-5又5/18
x=2又17/36
x+3又9/14=5.375
x=5又3/8-3又9/14
x=1又41/56
x-7又4/5=4又2/7
x=4又2/7+7又4/5
x=12又3/35
3/4-0.6+x=1又1/20
0.15+x=1.05
x=1.05-0.15
x=0.9
8-x=7.5-3又2/3
x=8-7.5+3又2/3
x=1/2+3又2/3
x=4又1/6門口
2/9×(7.75÷8/27-3.375+9.25×3又3/8)=? 要過程
15樓:匿名使用者
原式=2/9x[(31/4)÷(8/27)-(27/8)+(37/4)x(27/8)]
=2/9x[(31x27)/(4x8)-(27x4)/(8x4)+(37x27)/(4x8)]
=2/9x[(31x27-27x4+37x27)/(4x8)]=2/9x(64x27/32)=12
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