苏教版三年级第一单元口算1000道52+48=35+17=240+30=412+369=900-200=42-7=990-90=170-20=5x5二880+20=56-8=63+37=30-6=20-4=90+70=7x2=3x8=910-600=630+300=7x6=120-80=650-400=630-20=28-7=16-8=290+90=4x9=40-5=307+622=8x8=3x9=440-40=360-300=4x7=81-9=300+400=900-800=10x7=70+40=450+30=54-6=800-200=120+800=740-200=72-9二800-200=480-400=63-23=720+80=560-50=63-9=810-100=130+245=7x7二620-80=815+194=910+210=460+540=310x3二360-6二96-3二700-8二720-9二37+56二2x330二0-47二4700-700二32x3二50x6二560-7二600-3二70x7二680-2二440-4二48+28二1200-700二620-2二93-3二640-8二300-6二6x800二24x2二800-8二0x37二960-3二0-54二880-8二53-14二1500-900二12x30二9x500二17+27二1800-800二7x80二80+17二840-4二63-3二48x10二54+28二2x14二26+57二40x40二42x3二140-2二800-8二40x10二1700-800二660-6二33+57二23x30二90-3二7x800二600x3二60x50二180-3二7x700二37+8二70x80二300-5二840-2二480-8二10x68二930-3二430x2二630-3二40x50二800-4二5