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题型:解决问题 题类:常考题 难易度:普通
北师大版数学三年级下册4.2 1吨有多重(1)
70-47= 500+800= 24+52= 2000+700=
19+64= 170-90= 73-56= 1200-400=
700-400= 30+500= 19+36= 400+900=
28+23{#blank#}1{#/blank#}64 72-28{#blank#}2{#/blank#}54 460+370{#blank#}3{#/blank#}240+590
62+28{#blank#}4{#/blank#}82+18 26+49{#blank#}5{#/blank#}92-17 15+120{#blank#}6{#/blank#}140-47
33+24{#blank#}1{#/blank#}54 90-71{#blank#}2{#/blank#}20
540+100{#blank#}3{#/blank#}230+450 980-780{#blank#}4{#/blank#}110+90
62+2388 410-120200 65+1732+40
95-3857 160+250500 47+33650-540
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