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1、1 四年级下册口算题乘法四年级下册口算题乘法 153= 1530= 1503= 15030= 15300= 3150= 254= 4520= 5040= 2504= 1254= 1258= 214= 2140= 2104= 6090= 6008= 6050= 432= 2034= 3230= 1240= 7020= 3900= 6090= 127= 1270= 12070= 80090= 40200= 3520= 2520= 50030= 185= 254= 35020= 145= 14050= 2830= 3020= 4040= 14020= 1160= 1330= 13030= 5040=
2、 40200= 50600= 30310= 708= 41020= 2010= 16100= 20070= 50200= 3230= 13300= 40800= 1214= 60900= 10460= 1203= 20500= 7020= 2504= 12050= 1530= 2530= 2503= 15040= 25300= 30150= 2540= 45200= 7040= 1504= 1258= 1254= 2104= 20040= 3103= 8090= 6007= 60050= 4320= 2035= 3210= 12060= 70020= 30240= 60090= 128= 12
3、060= 50070= 80100= 90200= 35020= 45020= 50020= 1650= 454= 35010= 1405= 1430= 2630= 60200= 34020= 18050= 11060= 11300= 23030= 5504= 44020= 50800= 20320= 7008= 45020= 20010= 17100= 50070= 60200= 3430= 19300= 80800= 1224= 70900= 10100= 12300= 50500= 70060= 1258= 16050= 50200= 3230= 13300= 40800= 1214=
4、60900= 10046= 2203= 60500= 70020= 1504= 22040= 2530= 25030= 2503= 45020= 7520= 30150= 45200= 15600= 70040= 150200= 258= 2540= 31020= 20050= 1109= 80030= 6007= 60030= 43020= 30025= 3310= 12070= 60070= 80200= 2 四年级下册口算题混合运算 8 0 2 + 1 0 0 5 = 4 5 - 2 0 3 4 = 2 4 0 6 - 2 1 5 = 5 2 - 3 6 3 + 2 0 = 3 2 0
5、- 2 0 0 5 8 = 1 4 0 - 2 0 5 + 2 5 = 2 0 3 0 + 2 0 4 0 = 2 5 ( 3 0 + 1 0 ) = 8 0 0 4 0 - 4 0 0 4 0 = ( 8 4 0 - 4 0 0 ) 4 = 6 0 0 ( 1 2 0 6 0 ) = 6 0 ( 1 0 + 1 2 0 6 0 ) = ( 6 0 0 1 0 + 1 0 ) 7 = ( 2 6 + 1 4 ) 7 0 = 260+14(70-60)= (26+14)(70-40)= 9 0 ( 3 0 1 5 5 0 ) = ( 3 5 + 4 5 ) ( 9 0 - 1 0 ) = 6 1
6、 0 - ( 2 1 + 2 9 ) = 2 5 ( 2 2 + 2 6 3 ) = 3 2 0 - ( 1 2 0 + 2 5 4 ) = 8 0 ( 3 2 + 8 ) 3 0 0 = 3000-(32+8)30= 30169-(60+9)= 3 6 3 + 6 2 = 3 0 ( 3 + 6 2 ) = 3 6 ( 3 + 6 ) 2 = 1 8 0 ( 3 6 1 2 ) + 6 = 1 8 0 ( 3 6 1 2 + 6 ) = 1 8 0 3 6 ( 1 2 + 6 ) = 4 5 0 1 5 + 1 0 3 = 4 5 0 ( 1 5 + 1 0 ) 3 = 4 5 0 ( 1
7、5 + 1 0 ) 2 = 2 4 0 + 1 8 0 3 0 2 = (40+18030)2= (240+180)(302)= 3 6 + 3 6 0 1 2 = 8 0 0 - 8 0 0 8 0 3 0 = 8 0 0 - ( 7 0 6 + 1 8 0 ) = 6 5 ( 4 0 + 2 0 3 ) = 3 四年级下册口算题运算律 5 2 + 4 4 + 1 4 8 = 7 8 + 1 2 5 + 7 5 = 7 9 + 8 9 + 1 2 1 = 2 5 6 2 4 = 1 2 5 7 8 = 7 0 1 2 5 = 3 2 2 5 = 5 （ 1 2 1 1 ） = 5 6 0 1
8、 6 = 7 0 1 0 5 = 6 5 5 + 3 5 5 = 6 5 5 + 4 5 5 = 6 5 5 0 + 3 5 5 0 = 1 2 7 0 + 3 8 7 0 = 5 1 2 1 + 7 9 5 = 4 5 6 + 3 5 6 = 6 7 5 - 3 7 5 = 1 2 0 9 0 - 1 1 0 9 0 = 3 9 8 - 6 3 9 = 3 2 6 7 8 - 3 2 6 6 8 = 1 2 5 （ 8 + 4 ） = 1 2 （ 4 0 - 5 ） = 6 8 4 8 + 6 8 5 2 = 5 2 7 + 6 3 5 = 6 4 9 - 1 4 9 = 2 3 1 3 4 - 3 4 2 3 = 4 3 + 4 3 9 9 = 9 9 6 2 + 6 2 = 4 8 1 0 1 - 4 8 = 1 0 2 4 5 = 6 4 8 + 2 0 3 = 6 3 1 5 2 = 4 4 2 5 = 3 6 1 0 1 = 3 6 1 0 2 = 4 5 9 9 = 2 5 6 7 - 5 6 7 = 4 9 2 5 8 = 7 9 3 2 + 7 9 6 8 = 6 7 1 0 1 - 6 7 =
