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题型:单选题 题类:常考题 难易度:普通
人教版数学二年级下册总复习(2)B卷
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)=
50-8-2241 76-23-1876-(23-18) 32+17+650
42-4+825 86-42+1386-(42-13) 47+9+4197
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