简便计算要过程(-8分之7)*25*(1又7分之11)*(-4) (-8分之7)*25*(1又...
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发布时间：2024-10-23 19:24
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热心网友
时间：2024-11-10 22:10
(-7/8) X 25 X (1+ 11/7) X (-4)
= 7/8 X 4 X 25 X 18/7
= 7/2 X 18/7 X 25
= 9 X 25
= (4 + 4 + 1) X 25
= 100 + 100 + 25
= 225
(-3.59) X (-7/22) - 2.41 X (-7/22) + 6 X (-7/22)
= (-7/22) X ( -3.59 - 2.41 + 6 )
= (-7/22) X ( 6 - 6 )
= -7/22 X 0
= 0
(-14) X (3/4) - 0.34 X (3/7) + (1/4) X (-14) + (4/7) X (-0.34)
= (-14) X 3/4 + 1/4 X (-14) + 4/7 X (-0.34) + (-0.34) X 3/7
= (-14) X 4/4 + 7/7 X (-0.34)
= -14 - 0.34
= -14.34
