5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125
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5392+39977362-299962.4÷2.5÷0.4125÷(50÷8)55×0.997.2×10.18÷1255392+39977362-299962.4÷2.5÷0.4125÷(50÷8)
5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125
5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125
5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125
5392+3997
=5392+4000-3
=9392-3
=9389
7362-2999
=7362-3000+1
=4363
62.4÷2.5÷4
=62.4÷(2.5x4)
=6.24
125÷(50÷8)
=125x8÷50
=20
55x0.99
=55x(1-0.01)
=55-0.55
=54.45
7.2x10.1
=7.2x(10+0.1)
=7.2x10+7.2x0.1
72.72
8÷125
=(8x8)÷(125x8)
=0.064
5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125
5392+3997 7362-2999 62.4÷2.5÷0.4 125÷(50÷8) 55×0.99 7.2×10.1 8÷125 的简便计算还有一题 12.5×56 3.72-(1.72+1.7) .拜托了、今天就要..呜呜、
简便方法计算下面各题.(快的给50分)!5392+3997 7362-2999 62.4÷2.5÷0.4125÷(50÷8) 7.2x10.1 (100-1.25)x812.5x56 8÷125 (25+125)x893x51x51x51x6
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