二年级100以内数学口算练习题54-45=35+27=84-48=40-29= 48+48=60+25=72-45=46-38= 56-28=78-69=72-37=53+28= 96-59=75+17=54+37=59+19= 55-47=73+29=56-27=92+59= 98-56=35+17=60-38=36-25= 86-58=42-16=42-19=75-59= 24+38=42-23=52+23=63-37= 44+39=70+19=16+23=57-16= 12+29-19=69+10-36=27+12-28=67+27-37= 33-17+15=75-36+10=72-54+12=65-39-15= 62-18+24=54+21+18=53-29+19=35+12-28= 86-12-15=57-33+31=36-27+9=77-19-16= 88-34+18=85-36+27=12+79-62=51-27+28= 51-42+53=77-65-6=71-52+36=75-24+26= 75+24-23=32+45-38=81-45+36=24-16+40= 63+12-42=53-37+15=63-23+28=48-26+18= 35+17=50+22=62+12=22+55= 46-28=48-26=86-45=70-42= 72-54=16+27=43-27=63+25= 40-12=83-56=76-37=54-29= 79-64=98-48=64+24=75-55= 56-36=67-60=85-50=42-32= 55+38=15+56=69-31=93-56= 23+32=42-19=71-15=62-56= 21+82-60=36+34-14=73+12-71=21+82-60= 44-5+12=100-76+22=72-45+32=54-21-18=