试题 试卷
题型:单选题 题类:常考题 难易度:容易
(解析完整) 整数、小数四则混合运算6249
40×28.2×0.025=( )
7.4×5.6+7.4×5.4-7.4
5.8×9.9={#blank#}1{#/blank#}
0.45×198
=0.45×(200+2)
=0.45×200+0.45×2
=90+0.9
=90.9
2.5×7.1×4
16.12×99+16.12
26×15.7+15.7×24
(2.275+0.725)×0.28
9.6×25
3.6×4.9+0.36×51
(3.5+2.5)×{#blank#}1{#/blank#}=3.5×{#blank#}2{#/blank#}+{#blank#}3{#/blank#}×4
4.87×99=4.87×({#blank#}4{#/blank#}-{#blank#}5{#/blank#})
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