课件16张PPT。数花生2猜猜有多少个花生？123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100一个一个地数123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100两个两个地数123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100五个五个地数123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100十个十个地数两个两个地数，数出36个花生2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36五个五个地数，数出80个花生 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 100 90 80 70 60 50 40 30 20 10 0你会倒着数数吗？请十个十个地数，从100倒数到0。说一说二十五，三十，三十五…… 三十二，三十四，三十六…… 九十、八十、七十……1.一个一个地数，数出三十六个花生米。五个五个地数，数出八十个花生米。2.说一说。3.在下面各数的后面，连续数出五个数来。二十三 五十六 七十七 八十九 九十五我说你接4.圈一圈，数一数。43考考你这节课你学到了什么？畅所欲言
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