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题型:解决问题 题类:常考题 难易度:普通
两位数减整十数(不退位)997(10题)
6+20{#blank#}1{#/blank#}8+20 10+20{#blank#}2{#/blank#}0+30 80-40{#blank#}3{#/blank#}90-40
7+50{#blank#}4{#/blank#}42+6 16+20{#blank#}5{#/blank#}61-20 16+3{#blank#}6{#/blank#}50-30
3500-3000{#blank#}1{#/blank#}5000
80+750{#blank#}2{#/blank#}800
20+7 = 30-20 = 90+9= 60-30 = 24+6 =
51+8= 7+83= 85-5 = 90-70= 45+20=
96-7 = 65+20= 39+8= 4+65=
18+50-7= 80-60+35= 90-(60+30)= 63-(76-70)=
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