魔法数学口算比赛
3×9+14=5×9+23= 6×8-29=7×5+19= 9 ×5-37=6×7+46= 5×8-21=8×9-63= 8×7-19=4×9+16= 4×8-13=7×7+22= 5 ×5-16= 5×6-12=4×4+17=7×9-34= 9×2+35=
6×9+27=
3×8-17=
9×9-27=
4×8+36=
8+3×3=
28+29+16=
78-46+19=
64-35+26=
75-36+28=
80-（19-42）=
34+18=
82-49=
47-35=
61-44=
56-28=
84-26= 7×8+25= 6×6+37= 5×5+36= 8×8-29= 4×9+29= 6×9-15=4×5-8=6×2+48= 7×8+18= 3×3+29= 6+3×4= 16+3×5=47+29-31=29+64-28=18+24-27=85-36-27=38+28+13= 80-58+24=56+35-17=19+37-28=80-25+18=89-（40-24）= 26+48=64+19= 28+69= 70-21=56-38=86-28= 95-57=90-35=43-34= 76-38=57-29=84-38= 77-19=42-16=73-24= 95-27=63-26=51-28=3×6+21= 4×7+25=5×7-29=3×9+27= 9 ×8+22= 4+4×8= 55-23+24=74-35+35=47+38-29= 87-35-26= 48+33-26= 56+19= 72-27= 88-39= 71-24= 54-18= 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=
45+29-18=
15+27-23=
29+35+9=
75-46+31=
67-8+19=
7×9-9=
8×7+6=
9×5-9=
7×8+8=
3×4+11=
6×3+12=
7×4+32=
3×6+23=
4×6+38=
90-52-15=
81-(29+27)= 94-(34+27）= 38-19+23= 32+18-29= 56-(27+9)= 44-(26-18)= (25+19)-31= 97-25-47=53-9-37=48+26-39=32+(55-46)= 48+6-29= 73-(20+35)= 9×6-38= 6×7-34= 9×9-3= 6×9+5=9×9-9= 9×3+9= 8×4-8= 4×8+8=16+3×5= 1×5+26= 4×7-23= 9×8+21=6 ×7-26= 8×8+34=5×9-23= 6×5+32=6×7+18= 1×9+29=66-27+18=30-15+26= 42+(29-18)= 18+36+12= 44-(26-18)= 64-36+18= 54-49+28= 59-(9+37)= 70-28-35= 73-20-35= 7×9+17= 7×5-12= 4×7+7= 6×8-8= 6+3×5= 7×8-23= 9×7-31= 9×3-13= 60-(36-27)= 44-(26-18)= 5×8-21=
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