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题型:单选题 题类:常考题 难易度:普通
新人教版数学四年级下册6.2小数加减混合运算课时练习
0.8×0.5-0.5×0.8
=0.8×(0.5-0.5)×0.8
0.25×44
=0.25×4+0.25×4
=1+1
=2
4.32÷2.4×1.7 3.8×9.9+3.8×10.1 7.8÷12.5÷0.8
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