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题型:判断题 题类:常考题 难易度:容易
北师大版数学五年级下册第一章第1节折纸同步练习
× ={#blank#}1{#/blank#} + ={#blank#}2{#/blank#} — = {#blank#}3{#/blank#} ÷ ={#blank#}4{#/blank#}
问:哪几块的和等于 ?{#blank#}1{#/blank#}(填序号)
+ = - = + = 1- = - =
+ = - = + = - = - =
170﹣90=
0.46+0.4=
0.56÷0.8=
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