题目

直接写出得数。 4+55=              29+4=              88-60=           78-20+30= 43-9=               16-8=              100-50=          8+40-3= 56-7=               46+3=              50+8=           20+30+7= 8+18=              25+20=            77-6=            18-6-9= 12-3=               92-40=             4+35=            30+15-7= 答案：4+55=59              29+4=33              88-60=28           78-20+30=88 43-9=34               16-8=8                100-50=50          8+40-3=45 56-7=49               46+3=49              50+8=58            20+30+7=57 8+18=26              25+20=45            77-6=71             18-6-9=3 12-3=9                 92-40=52             4+35=39            30+15-7=38

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