Question

3.1×0.25 1.01×9.6 这两题怎么简算,

Answer 1

3.1×0.25 =（3+0.1）×0.25=3×0.25+0.1×0.25=0.75+0.025=0.775

1.01×9.6=（1+0.01）×9.6=1×9.6+0.01×9.6=9.6+0.096=9.696