1+0.5%=0.8﹣=0.5﹣== 365﹣199==3×===
270×0.4×2×2.5×0.5 95×38+62÷．
口算题===10%+0.9=7﹣7÷8= 7﹣7÷8=79×99=4÷7+3÷7=6.8×===
能简算的要简算： （1）（25×4﹣12.5）×8（2）÷6+× （3）×0.75+×（4）4﹣[3.75×（1.2﹣）+]．
简便计算．64×3.75+3.75×36 25×32×1.25．
=0.5﹣
=
= 365﹣199=
=3×
=
=
=
．
=
=
=10%+0.9=7﹣7÷8=
=
=
=
÷6+
×
×0.75+
×
（4）4﹣[3.75×（1.2﹣
）+
]．
64×3.75+3.75×36 25×32×1.25．
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