5大题1小题简算

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5大题1小题简算

5大题1小题简算
5大题1小题简算
 

5大题1小题简算
4444*3333
=4*3*1111*1111
=12*1234321
=(10+2)*1234321
=12343210+2468642
=1481152
1.25×67.875+125×6.7875+1250×0.053375
=1.25×67.875+1.25×678.75+1.25×53.375
=1.25×(67.875+678.75+53.375)
=1.25×800
=10001+(2+4+8+16)+16×(2+4+8+16)
=1+(2+4+8+16)×(16+1)
=1+30×17
=1+510
=511