小青收集了多少个 ?
小青比小林少收集4个,就拿掉4个小方块.
先摆小林收集的13个.
13-4=9(个)
பைடு நூலகம்
塑料埋在地下很多年都不会“腐烂”, 它对环境的危害可大了
我收集了13个
我收集的比小林多3个.
我收集的比小林少4个.
你能提出哪些数学问题?
小红收集了多少个 ?
先摆小林收集的13个.
小红比小林多收集3个,就增加3个小方块.
13+3=16(个)
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