Question

350+75÷25×24简便计算脱试计算

脱试计算,怎么算简便就怎么算.
400×0.75%÷5
4.2÷25%+(180%+5.7)
36/5÷18/25-5/24÷5/14
4×60%+19/25×40%+19/25×60%
4015-3.75×10%-5/8
7/3×72%÷21/5

Answer 1

400×0.75%÷5
=400X0.25X0.03÷5
=3÷5
=0.6
4.2÷25%+(180%+5.7)
=(4÷0.25+0.2÷0.25)+(1.8+5.7)
=16.8+7.5
=24.3
36/5÷18/25-5/24÷5/14
=10-7/12
=9又5/12
4×60%+19/25×40%+19/25×60%
=4X0.6+19/25(0.4+0.6)
=2.4+0.76
=3.16
4015-3.75×10%-5/8
=4015--0.375-0.625
=4015-(0.375+0.625)
=4015-1
=4014
7/3×72%÷21/5
=(7/3)X(18/25)X(5/21)
=2/5