二年级上册口算

12+15= 54-13= 16+35= 16+13= 82-79= 77-48= 6×6 = 6+17= 46+23= 84-19=

12+15= 8+23= 83-47= 65+12+8= 54-13= 89+11= 4×9= 17+17-9= 16+35= 33+26= 4×4= 81+15+5= 16+13= 23+25= 97-64= 17+59-18= 82-79= 12+26= 7+17= 41-28+39= 77-48= 72-19= 29+49= 52-44+16= 6×6= 68+12= 8×9= 53+18-12= 6+17= 96-29= 59+17= 86+4+6= 46+23= 27+17= 85-46= 8×5-22= 84-19= 85-68= 59+17= 4×5+12= 18+20= 88-62= 64+14= 6×7-20= 61-23= 40+16= 7+52= 5×2+11= 65+28= 69-16= 33-10= 17+63-33= 19+55= 69+26= 22+45= 85+17-38= 69+22= 51-11= 42-28= 55+20-16= 92-38= 40-21= 17+3= 54+13+7= 77-18= 46+19= 86-18= 35+46+4= 68-39= 91-20= 64-19= 9+53+27= 92-13= 92-46= 43+29= 89+17-38= 82-28= 55+25= 83+14= 26+27-18= 28+19= 76+11= 2×6= 57+28-16= 54+49= 65-37= 8×8= 3×9= 4×3= 67+25= 3×3= 4×7= 7×8= 15+47= 8×6= 5×5= 6×9= 82-73= 28+18+29= 8×7=

腾讯文库二年级上册口算