一年级两位数加减法口算练习题(四十九)
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2018-10-08 10:13:32
一年级两位数加减法口算练习题(四十九)
| 88-21= | 80-26= | 31+38= | 22+39= | 98-93= |
| 64-57= | 46-21= | 18-11= | 81-59= | 50-27= |
| 97-73= | 12+31= | 54-47= | 52-23= | 99-10= |
| 97-18= | 32+54= | 21+76= | 13+19= | 11+40= |
