题目内容
【题目】直接写出得数
0.5×0.8= 0.25×0.4= 2÷0.02= 5.6÷0.7= 0.18×1000=
2.5+7.5= 12.5÷5= 8.5÷85= 5.6÷4= 0.48÷48=
0.99÷0.3= 0.72÷1.2= 0.25×8.5×4= 4.8×11﹣4.8= 0.5×2×0.2=
0.7×3+3.2= 3.18÷0.01= 3.8﹣1.9×2= 0.4×0×0.25= 3×0.5﹣0.5×3=
【答案】0.4,0.1,100,8,180,10,2.5,0.1,1.4,0.01,3.3,0.6,8.5,48,0.2,5.3, 318,0,0,0
【解析】
试题分析:本题根据小数乘法、除法、加法、减法的运算法则计算即可.
0.25×8.5×4可按乘法交换律计算;
4.8×11﹣4.8可根据乘法分配律计算.
解:0.5×0.8=0.4, 0.25×0.4=0.1, 2÷0.02=100, 5.6÷0.7=8, 0.18×1000=180,
2.5+7.5=10, 12.5÷5=2.5, 8.5÷85=0.1, 5.6÷4=1.4, 0.48÷48=0.01,
0.99÷0.3=3.3, 0.72÷1.2=0.6, 0.25×8.5×4=8.5, 4.8×11﹣4.8=48, 0.5×2×0.2=0.2,
0.7×3+3.2=5.3, 3.18÷0.01=318, 3.8﹣1.9×2=0, 0.4×0×0.25=0, 3×0.5﹣0.5×3=0.
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