直接写得数.
0.25×8=5.6×99=18.45÷9=6+2.6=7.4-0.4=2.5×4÷100=0.63×100=3.6×2.5=0.99+0.1÷10=40÷50=0.62÷10=0.8×2÷0.8×2=4.2÷0.7=125×8.2=1.5×0.7+8.5×0.7=3×0.32=
网友回答
解:0.25×8=2,5.6×99=554.4,18.45÷9=2.05,6+2.6=8.6,7.4-0.4=7,2.5×4÷100=0.1,0.63×100=63,3.6×2.5=9,0.99+0.1÷10=1,40÷50=0.8,0.62÷10=0.062,0.8×2÷0.8×2=4,4.2÷0.7=6,125×8.2=1025,1.5×0.7+8.5×0.7=7,3×0.32=0.96.
解析分析:本题根据小数加法、减法、乘法、除法运算法则计算即可.
5.6×99可用凑整法计算;
3.6×2.5将3.6拆分为9×0.4计算;
0.8×2÷0.8×2=可根据乘法交换律计算;
125×8.2可将8.2拆分为8+0.2后根据乘法分配律计算;
1.5×0.7+8.5×0.7可根据乘法分配律计算.
点评:完成本题要细心分析式中数据的特点,能简便计算的要简便计算.