题目内容

直接写得数:
0.06×0.25=
0.8×1.25= 10-0.01= 8.1÷0.03=
3×0.2×0.5= 0.25×16= 0.35÷0.7= 8.4÷0.2+1.6×0.21=
7.2×0.3+2.8×0.3= 1.2×0.4+1.3×0.4=
分析:本题根据小数乘法、除法、加法与减法的运算法则计算即可.
3×0.2×0.5可根据乘法结合律计算;
0.25×16可将16拆分为4×4计算;
7.2×0.3+2.8×0.3、1.2×0.4+1.3×0.4可根据乘法分配律计算.
解答:解:
0.06×0.25=0.015, 0.8×1.25=1, 10-0.01=9.99, 8.1÷0.03=270,
3×0.2×0.5=0.3, 0.25×16=4, 0.35÷0.7=0.5, 8.4÷0.2+1.6×0.21=42.336,
7.2×0.3+2.8×0.3=3, 1.2×0.4+1.3×0.4=1.
故答案为:0.015,1,9.99,270,0.3,4,0.5,42.336,3,1.
点评:完成本题要细心分析题目中的数据,能简便计算的要简便计算.
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