0.25+(-1/8)-(+7/8)-(+3/4)还有-3-〔-5+(1-3*3/5)/(-2)〕 9又14/15*(-15)的计算过程和结果还有-6²*(-1又1/2)²-3²/(1又1/2)三次方*3

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/10 04:29:08
0.25+(-1/8)-(+7/8)-(+3/4)还有-3-〔-5+(1-3*3/5)/(-2)〕 9又14/15*(-15)的计算过程和结果还有-6²*(-1又1/2)²-3²/(1又1/2)三次方*3

0.25+(-1/8)-(+7/8)-(+3/4)还有-3-〔-5+(1-3*3/5)/(-2)〕 9又14/15*(-15)的计算过程和结果还有-6²*(-1又1/2)²-3²/(1又1/2)三次方*3
0.25+(-1/8)-(+7/8)-(+3/4)还有-3-〔-5+(1-3*3/5)/(-2)〕 9又14/15*(-15)的计算过程和结果
还有-6²*(-1又1/2)²-3²/(1又1/2)三次方*3

0.25+(-1/8)-(+7/8)-(+3/4)还有-3-〔-5+(1-3*3/5)/(-2)〕 9又14/15*(-15)的计算过程和结果还有-6²*(-1又1/2)²-3²/(1又1/2)三次方*3
0.25+(-1/8)-(+7/8)-(+3/4)
=1/4-1/8-7/8-3/4
=2/8-1/8-7/8-6/8
=-3/2
=-1又1/2

-3-〔-5+(1-3*3/5)/(-2)〕
=-3-[-5+(-4/5)/(-2)〕
=-3-[-5+2/5]
=-3-[-23/5]
=-15/5+23/5
=8/5
=1又3/5
9又14/15*(-15)
=-149/15*15
=-149

-6²*(-1又1/2)²-3²/(1又1/2)三次方*3
=-36*9/4-9/(27/8)*3
=-81-8
=-89

0.25+(-1/8)-(+7/8)-(+3/4)
=1/4-1/8-7/8-3/4
=(1/4-3/4)-(1/8+7/8)
=-1/2-1
=-3/2

还有-3-〔-5+(1-3*3/5)/(-2)〕
=-3-(-5+2/5)
=-3+5-2/5
=8/5

9又14/15*(-15)
=(...

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0.25+(-1/8)-(+7/8)-(+3/4)
=1/4-1/8-7/8-3/4
=(1/4-3/4)-(1/8+7/8)
=-1/2-1
=-3/2

还有-3-〔-5+(1-3*3/5)/(-2)〕
=-3-(-5+2/5)
=-3+5-2/5
=8/5

9又14/15*(-15)
=(10-1/15)×(-15)
=-150+1
=-149
-6²*(-1又1/2)²-3²/(1又1/2)三次方*3
=-(6×3/2)²-9/(3/2)³*3
=-81-8/3×3
=-89

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0.25+(-1/8)-(+7/8)-(+3/4)
=(0.25-3/4)+(-1/8-7/8)
=-0.5-1
=-1.5
-3-〔-5+(1-3*3/5)/(-2)〕
=-3-[-5+2/5]
=-3+4.6
=1.6
9又14/15*(-15)
=(10-1/15)×(-15)
=-150+1
=-14...

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0.25+(-1/8)-(+7/8)-(+3/4)
=(0.25-3/4)+(-1/8-7/8)
=-0.5-1
=-1.5
-3-〔-5+(1-3*3/5)/(-2)〕
=-3-[-5+2/5]
=-3+4.6
=1.6
9又14/15*(-15)
=(10-1/15)×(-15)
=-150+1
=-149
-6²*(-1又1/2)²-3²/(1又1/2)三次方*3
=-36×9/4-9÷27/8×3
=-91-8
=-99

收起