二年級口算訓(xùn)練

口算訓(xùn)練36+6=20+6=70+20=24+62=54+24=90-10=57-7=60+13=50+25=76-50=80+17=89-36=30+55=61+17=48-25=91-18=80-7=58+31=8+26=18+6=36+30=75+5=80-9=84-14=32-21=87-5=68-2=80+15=93-7=89-80=92-70=84-20=32+15=50+30=48+3=54+7=63+9=90-8=48-25=91-18=80-47=58+31=18+26=18+6=52-12=26-9=24+22=75-25=37-8=12+16=20+15=16+22=80+20=70+23=50+20=44+6=64+20=12+34=93-7=89-80=92-20=84-20=32+5=50+37=48+7=54+27=63+19=90-8=9+37=80-6=42+34=12+32=70-30=8+55=13+20=50+12=8+30=42+39=64-41=44+51=34+54=29+60=99-22=100-35=29+40=37+58=87-20=99-26=76+24=52+48=82-33=99-76=61-22=39+24=37+51=70-45=97-30=12+16=20+15=16+20=口算訓(xùn)練80+12=70+23=50+24=44+35=64+20=12+34=24+23=48-34=63+26=49+10=35+13=18+10=56+12=64-23=35+12=22+56=90-9=63-7=40+29=12+32=70-3=8+55=86-9=64+22=75-23=36-6=20-6=70-20=24+62=54+24=90-19=50-7=60+13=5+25=76-50=8+17=89-34=30+15=61+7=24+23=48-34=63+23=49+11=35+13=18+12=56+12=64-23=35+12=24+56=90-9=63-17=40+29=6+30=75+5=80-9=84-70=32-21=87-45=68-20=80+20=60+22=71-30=32+12=36+17=42+18=36+34=57-24=62+20=21+16=13+20=26+4=35+12=61+25=39+6=43+7=51+2=75+3=26+3=61+5=68-47=76-45=68-41=94-28=23+23=65+31=31+62=44+43=71-34=85-23=98-58=40+49=79-54=60-24=81-22=68-41=37+59=94-49=26+55=86-36=28+33=口算訓(xùn)練74-22=40+42=66+33=59-22=33+58=85-51=43+25=85-31=81-32=26+74=85-41=29+53=86-62=98-34=64+24=51-27=64+30=22+71=48-23=53-28=39+26=60-23=73+20=56+20=66-21=20+24=95-58=26+29=34+55=54-31=41+53=44+37=55+34=35+62=100-50=25+73=27+22=30+45=94-41=21+56=33+58=99-74=94-40=80-47=82-44=74-37=39+30=31+37=61+29=78-37=60-38=22+42=92-56=46+25=36+63=77-54=23+42=100-62=43+44=55-26=95-49=64+25=20+22=10+24=30+54=25+6=8+13=62+57=31+6=34+25=64+5=67+54=32+4=58+9=48+5=62+5=86+5=32+6=78+6=34+25=14+85=88-30=96-43=47-23=36+47