一年级两位数加减法口算练习题（九十）
奥数网
2018-10-30 11:18:02
一年级两位数加减法口算练习题（九十）
| 60-35= | 15+50= | 92-32= | 24+55= | 98-58= |
| 57-40= | 74-38= | 17+43= | 11+87= | 58-12= |
| 90-34= | 17+80= | 43-31= | 78-20= | 89-85= |
| 31-10= | 23+39= | 55-39= | 88-28= | 52-46= |
