魔法数学口算比赛.doc

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1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流魔法数学口算比赛.精品文档.魔法数学口算比赛39+14= 59+23= 68-29= 75+19=9 5-37= 67+46= 58-21= 89-63=87-19= 49+16= 48-13= 77+22=5 5-16= 56-12= 44+17= 79-34=92+35= 78+25= 66+37= 36+21=69+27= 55+36= 88-29= 47+25=38-17= 49+29= 69-15= 57-29=99-27= 45-8= 62+48= 39+27=48+36= 78+18= 33+29= 9 8+22=8+33= 6

2、+34= 16+35= 4+48=28+29+16= 47+29-31= 29+64-28= 55-23+24=78-46+19= 18+24-27= 85-36-27= 74-35+35=64-35+26= 38+28+13= 80-58+24= 47+38-29=75-36+28= 56+35-17= 19+37-28= 87-35-26=80-（19-42）= 80-25+18= 89-（40-24）= 48+33-26=34+18= 26+48= 64+19= 28+69= 56+19=82-49= 70-21= 56-38= 86-28= 72-27=47-35= 95-57= 90

3、-35= 43-34= 88-39=61-44= 76-38= 57-29= 84-38= 71-24=56-28= 77-19= 42-16= 73-24= 54-18=84-26= 95-27= 63-26= 51-28= 72-34=38-19= 41-27= 63-39= 71-17= 80-38=35+19= 58+35= 59+26= 55+38= 27+36=19+39= 54+18= 73+18= 24+39= 58+37=28+59= 19+32= 70-26= 96-39= 61-18=45+19= 21-6= 50-27= 80-4= 72-29= 19+28+25= 9

4、4-(34+27）= 38-19+23= 44-(26-18)=45+29-18= 32+18-29= 56-(27+9)= 64-36+18=15+27-23= 44-(26-18)= (25+19)-31= 54-49+28= 29+35+9= 97-25-47= 53-9-37= 59-(9+37)=75-46+31= 48+26-39= 32+(55-46)= 70-28-35=67-8+19= 48+6-29= 73-(20+35)= 73-20-35=79-9= 96-38= 67-34= 79+17=87+6= 99-3= 69+5= 75-12=95-9= 99-9= 93+9= 47+7=78+8= 84-8= 48+8= 68-8=34+11= 16+35= 15+26= 6+35=63+12= 47-23= 98+21= 78-23=74+32= 6 7-26= 88+34= 97-31=36+23= 59-23= 65+32= 93-13=46+38= 67+18= 19+29= 60-(36-27)=90-52-15= 66-27+18= 30-15+26= 44-(26-18)=81-(29+27)= 42+(29-18)= 18+36+12= 58-21=