三年级数学下册三《乘法》电影院练习2(无答案)北师大版.doc

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1电 影 院轻松准备不感兴趣教算术课的老师问:“有人借出五万元,每月的利息是 1 分,两年后,能收到多少利息?”全班同学纷纷计算,只有一个银行家的儿子端坐不动。 “你为什么不计算呢?” “对于一分这样的月息,我不感兴趣。 ”快乐学习1口算。3510 = 7070= 1630= 3330=1140= 3620= 2120= 1450=2把下面的题接着做完。(1)(2)(3)3下面的计算对吗?如果不对,改正过来。4.估算3941 2133 4758 21811822 6138 2717 397221323 4411 2124 11695列竖式计算。2223 34272517 24386在里填上“” “ 1200 能坐下17. 4624=1104(元)11041000 不够5524=1320(元)518. 9001825=450(千克)19. (1) 2448=1152(元)20. (1)1206= 20(条)2030=600(元)(2)1204=30(条)3024=720(元)(3)19 条大船和 2 条小船。1930242=618(元)21.这些题目都是乘 15,计算时可以采用“添 0 加半的方法” 。比如:36 15 就是360180=540。

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