文档介绍：Revised by BLUE on the afternoon of December 12,2020.
二年级上册数学口算题以内数学口算
二年级上册数学口算题：100以内数学口算练习题
54-45= 35 Revised by BLUE on the afternoon of December 12,2020.
二年级上册数学口算题以内数学口算
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+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-