1、二年级上册数学口算题：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+
2、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
3、+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=67-47+22= 21+82+17= 83-27+10=
4、 54+21-18=65-33-18= 68-65-3= 54-52+17= 88-51-24=76-63+1= 63+18+11= 65+15-47= 77-34+55=43-29+13= 35-28-28= 77-38+42= 60-34+35=17+27-10= 55+38-15= 54-41+36= 99-88+77=75+15-30= 92-6+11= 42-37+54= 77-64+22=17-25= 50+22= 62-48= 22+55=46-28= 48-26= 86-45= 70-42=72-54= 16+27= 43-27= 75-33=40-12= 83-564= 76-37= 54-29=79-64= 48+35= 64+36= 71-55=56-36= 67-60= 85-50= 38+46=55+38= 15+57= 39+38= 93-56=23+32= 42-19= 15+26= 56+28=
