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义务教育教科书 苏教版小学数学三年级上册,整十整百数乘一位数,整十整百数乘一位数,,5,3,1分米,,1,3,4,5,6,7,8,9,10,2,,,,,,,,,一个一个地数,十个十个地数,一百一百地数,,每盘20个,,一共多少个,,每盘20个,,一共多少个,20202060,,每盘20个,,一共多少个,203,60,,每盘20个,,一共多少个,想23 6,203,60,9,,试一试,303,,460,0,24,,0,,2003,00,6,试一试,,802,8002,8216,,,160,1600,,,507,5007,5735,,,350,3500,2003600,20360,236,照样子算一算,,403120,4003,4312,,,1200,,603,60031800,6318,,,180,,5735,,29,39,59,69,79,89,99,28,27,26,25,24,23,22,38,37,36,35,34,33,48,47,46,45,44,58,57,56,55,68,67,66,78,77,88,49,19,18,17,16,15,14,13,12,11,,2003600,6006,4007,,,20360,236,407,47,606,66,28,280,2800,36,360,3600,4700,470,280,2800,,算一算,206 ,3800 ,820 ,704 ,5002 ,9400 ,970 ,6007 ,120,2400,280,1000,160,3600,630,4200,,19,29,39,49,59,69,79,89,,18,17,16,15,14,13,12,11,28,27,26,24,23,22,38,37,36,35,34,33,48,47,46,,44,,57,,55,68,78,77,88,25,25,66,67,编一编,205100,20051000,45,56,58,99,,,,250100,25001000,2510,,,2400,4200,3600,1000,280,120,630,160,,比一比,206 ,3800 ,820 ,704 ,6007 ,9400 ,970 ,5002 ,,,,,40,50,四十几,如果买4箱西瓜，200元够不够,,如果买4箱西瓜，200元够不够,,如果买4箱西瓜，200元够不够,50元,48元,50元,48元,50元,48元,50元,48元,,,,,够,不够,,,,,,,300元够买5箱哈密瓜吗,够,不够,,60,5 300元,62,60,60,60,60,60,,62,625, 300元,,,,老师买了3张同样价格的火车票，付了1000元，还找回了一些零钱。,1000元,400元,400元,400元,,,1000元,200元,200元,200元,老师买了3张同样价格的火车票，付了1000元，还找回了一些零钱。,,下,,300元,300元,300元,1000元,,,300元,300元,300元,1000元,老师买了3张同样价格的火车票，付了1000元，还找回了一些零钱。,,,1000元,200元,200元,200元,,,,,,,,,203,2003,2300,20003,230,,,谢谢,
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