题型:解决问题 题类:常考题 难易度:困难
两位数减两位数(退位)1185(11题)
= ( )
= ( )
= ( )
问题1:
解答: = ( )
问题2:
解答: = ( )
| | | |
原有 | 44颗 | ( )颗 | 31副 |
拿走 | 28颗 | 9颗 | ( )副 |
还剩 | ( )颗 | 22颗 | 12副 |
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