3+?=6,7+?=12,25+?=64
?-4=6,?-13=26,?-26=72
88-?=33,72-?=37,100-?=41
22+43=?,23+37=?,46+67=?
4*9=?,7*9=?,8*8=?
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?+32=63-25,?-13=15+18
17+?+37=81,5+15+25+35=?
27+?=39-?,16+38-48+22=?
?-29=?+32,100-24-28-36=?
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