一年级数学（下册）100以内全混合 7+27= 72-35= 67+23= 35-2= 18+78= 65-19= 55+26= 47-8= 63-28= 34+9= 52+29= 24-7= 86-19= 42+9= 75-47= 21-5= 34+49= 8+28= 38+58= 37-6= 17+66= 8+78= 72-54= 31-7= 49+37= 1+67= 93-59= 33+5= 28+37= 42-7= 52-3= 75+18= 45-3= 44-29= 23+69= 77+17= 26-3= 66+16= 67+2= 93-64= 67-2= 85-39= 81-34= 27-2= 25+3= 42-27= 55+3= 65+18= 55+27= 49+46=