數(shù)的順序、比較大小育英學(xué)校：孫健敏24681011131517192228333744465564667382889199123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100游戲:猜數(shù)字第4行第8個數(shù)是55前面一個數(shù)是第3行第8個數(shù)是第5行第4個數(shù)是87前面一個數(shù)是99后面一個數(shù)是385428448610012345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910012345678910989799884544463555100以內(nèi)數(shù)的順序和比較大小的練習(xí)一、

按照數(shù)的順序填數(shù)。

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10()()()50()()()()()322928303133203040607080901002725填一填2837382426153567665676685878675756767758782826>1234小結(jié)1234小結(jié)2826>1234小結(jié)2826>1234小結(jié)2826>1234小結(jié)2826>861234小結(jié)小結(jié)：比較兩個兩位數(shù)大小的一般方法：1、先看十位上的數(shù)，十位上的數(shù)大，這個兩位數(shù)就大；2、如果十位上的數(shù)相同，再看個位上的數(shù)，個位上的數(shù)大，則這個兩位數(shù)就大。百十個百十個

39

45<百十個百十個32

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