1、加和减口算题练习14060=8739=1200600=4648=7715=7926=3649=3229=8113=1400900=5816=7621=600800=3724=6934=4846=4129=3836=3268= 6212=7828=7316= 3631=6641= 6518=3517=7534=9238=5419=4626=9014=3466=4015=9613=1644=4530=6919=5827=706=3729=4723=1100900=6328=400700=1300800=6430= 3458=700800=2953=40005000=1500700=4139=170
2、900=6337=7219=6932=3916=7555=7143=8119=1259=5625=3918=6639= 4429=4549=8248=5919=6135=1149=4624=5921=3934=7426=3926=9739=6535=6614=7113=5312=5127=8682=666=2523=8010=5212=2222=6227=1427=6613=6920=4912=7317=6219=1400600=5600600=6137=1200400=3856=3920=100900=1000100=1249=1800500=7134=3218=6535=6939=6916
3、=6317=4922=4329=3929=5129=6912=7919=9561=6733=6764=6734=5005000=5536=2936=1500900=9346=7535=700600=1600700=4135=6718=3629=450200=6733=4317=9046=2634=4417=3313=6535=8046=6319=5636=3529=6822=8713=9065=8066=2368=3536=3119= 300700=5500500=66006000=7600700=83008000=7617=5328=9835=6536=3725=3927=7217=9566
4、=7916= 7031=5718=7326=5726=8217=5629=5029=7465=4339=9227=4328=2419=8812=4639=9175=2575=7246=1627=3862=2862=3932=8515=1825=8628=14002000=3959=8065=1768=5821=7926=51001000=3946=2648=7124=27002000=8752=7638=4654=5429=8028=2971=5925=5139=7327=3433=1749=4654=8539=5626=6139=5723=6942=3268=4723=5618=928=8219=3925=8515=8217=6931=7371=9035=4555=8517=6334=1400300=5426=9846=3546=5627= 7856=3600400=32002000=3259=8335=5649=2773=9439=5415=8218=74 39=7024=4539=8046=7252=8119=6817=4937=6327=4060=2300700=3521=6520=4500500=2930=8716=4218=7818=62080=9015=4125=3961=8128=6516=8119=7116=7723=4