一年级数学下册拓展题
一年级数学拓展练习(1)1、20个小朋友报数,单数一行,双数一行。单数第5个数是()号,双数第10个数是()号。2.天平板上有8个同样的乒乓球,左边4个,右边4个。如果拿掉1个球,板上还有()个球。3.小朋友排队去公园,小华前面有4个人,后面有10个人。小华排在第()个,一共有()个小朋友去公园。4.数一数。()个长方形()个长方形()个长方形5.想一想,填一填。①□-○=710+○=19○=()□=()②△+○+□=6○+□=5□+△=4△=()□=()○=()③△-☆=6○-△=1△+△=4☆=()○=()△=()7、张老师带了男女同学各52名去看电影,一共要买()张电影票。8、有20个小...
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