计算:-3又1/2+5又3/5÷(-3)²
大家麻烦下了,我是新生的初一.有些计算题不会坐,我空了很久没上课,计算:(-3/5)×(-3又1/2)÷(1又1/4)÷31÷(1又1/6-8又3/4×2/7)+14/2...
大家麻烦下了,我是新生的初一.有些计算题不会坐,我空了很久没上课,
计算:(-3/5)×(-3又1/2)÷(1又1/4)÷3
1÷(1又1/6-8又3/4×2/7)+14/27÷7/18
(2又1/3-3又1/2+1又4/45)÷(-1又1/6)
2/5÷(-2又2/5)-8/21×(-1又3/4)-0.25
-(-2)4的幂方
(-1又1/2)³
-1³-3×(-1)³
-3²÷(-3)²
-2的4次幂方+(3-7)4次幂方-2
(-10)²÷25×(-10÷25)²
-------------------O(∩_∩)O谢谢 展开
计算:(-3/5)×(-3又1/2)÷(1又1/4)÷3
1÷(1又1/6-8又3/4×2/7)+14/27÷7/18
(2又1/3-3又1/2+1又4/45)÷(-1又1/6)
2/5÷(-2又2/5)-8/21×(-1又3/4)-0.25
-(-2)4的幂方
(-1又1/2)³
-1³-3×(-1)³
-3²÷(-3)²
-2的4次幂方+(3-7)4次幂方-2
(-10)²÷25×(-10÷25)²
-------------------O(∩_∩)O谢谢 展开
展开全部
(-3/5)×(-3又1/2)÷(1又1/4)÷3
=-3/5x-7/2x4/5x1/3
=14/25
1÷(1又1/6-8又3/4×2/7)+14/27÷7/18
=1÷(7/6-35/4x2/7)+14/24x18/7
=1x(-3/4)+4/3
5/12
(2又1/3-3又1/2+1又4/45)÷(-1又1/6)
=(7/3-7/2+49/45)x(-6/7)
=7/3x(-6/7)-7/2x(-6/7)+49/45x(-6/7)
=-2+3-4/15
=11/15
2/5÷(-2又2/5)-8/21×(-1又3/4)-0.25
=2/5x(-5/12)-8/21x(-7/4)-1/4
=-1/6-2/3-1/4
=-13/12
-(-2)4的幂方
=-12
(-1又1/2)³
=(-3/2)的3次幂
=-27/8
-1³-3×(-1)³
=-1-3*(-1)
=-1-3
=-4
-3²÷(-3)²
=-9÷9
=-1
-2的4次幂方+(3-7)4次幂方-2
=12+(-4)的4次幂-2
=12+256-2
=266
(-10)²÷25×(-10÷25)²
=100÷25×(-2/5)的2次幂
=100÷4/25
=625
=-3/5x-7/2x4/5x1/3
=14/25
1÷(1又1/6-8又3/4×2/7)+14/27÷7/18
=1÷(7/6-35/4x2/7)+14/24x18/7
=1x(-3/4)+4/3
5/12
(2又1/3-3又1/2+1又4/45)÷(-1又1/6)
=(7/3-7/2+49/45)x(-6/7)
=7/3x(-6/7)-7/2x(-6/7)+49/45x(-6/7)
=-2+3-4/15
=11/15
2/5÷(-2又2/5)-8/21×(-1又3/4)-0.25
=2/5x(-5/12)-8/21x(-7/4)-1/4
=-1/6-2/3-1/4
=-13/12
-(-2)4的幂方
=-12
(-1又1/2)³
=(-3/2)的3次幂
=-27/8
-1³-3×(-1)³
=-1-3*(-1)
=-1-3
=-4
-3²÷(-3)²
=-9÷9
=-1
-2的4次幂方+(3-7)4次幂方-2
=12+(-4)的4次幂-2
=12+256-2
=266
(-10)²÷25×(-10÷25)²
=100÷25×(-2/5)的2次幂
=100÷4/25
=625
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