试题 试卷
题型:填空题 题类:常考题 难易度:普通
小数乘整数5732 10
①0.25×2.8
=0.25×(4×0.7)
=0.25×4×0.7
=1×0.7
=0.7
(应用了定律)
②51.25×0.8
=(50+1.25)×0.8
=50×0.8+1.25×0.8
=40+1
=41
12.7+2.53+7.47
0.73×1.8+8.2×0.73
0.25×39+0.25
16.3﹣6.42﹣3.58
0.69×101
8.4×(64﹣54÷9)
49×0.125×8
0.8×0.94×12.5={#blank#}1{#/blank#}
试题篮