三位数乘两位数估算总结练习题及答案(四年级数学计算题100道)

=24x423

=27x304=

28x604=67x201=77x234

=43x6

=32x246=

16x120=16x752=34x348

=92x3

=15x8=

22x825=82x805=76x825

=16x322

=81x8=

70x220=85x179=66x115

=60x512

=38x598=

34x571=59x577=82x778

=96x163

=33x663=98x181=82x797=97x879

=11x333

=80x2=21x1=45x387=49x271

=69x358

=48x280=37x615=94x296=62x675

=19x859

=17x315=84x191=13x825=50x771

=26x317

=74x846=12x730=87x588=39x316

=77x871

=14x266=87x240=26x352=97x695

=55x297

=58x272=80x732=16x660=22x538

=14x652

=57x455=39x510=59x345=11x279

=67x347

=16x456=29x403=81x116=93x322

=55x877

=33x157=29x344=69x852=95x699

=93x356

=51x593=28x576=61x224=95x751

=88x201

=90x132=22x121=22x672=61x871

=43x386

=61x284=x342=59x515=87x705

=11x148

=84x811=44x150=31x596=52x404

=74x272

=80x841=87x772=计算题答案65x380=2470083x6=5361824x423=1015227x304=

8208

28x604=1691267x201=1346777x234=1801843x6=2777832x246=

787216x120=192016x752=1203234x348=1183292x3=5915615x8=1281022x825=1815082x805=6601076x825=6270016x322=515281x8=6917470x220=10085x179=1521566x115=759060x512=3072038x598=22724

34x571=1941459x577=3404382x778=6379696x163=15833x663=2187998x181=1773882x797=65397x879=8526311x333=366380x2=5136021x1=1136145x387=17419x271=1327969x358=2470248x280=1344037x615=2275594x296=2782462x675=4185019x859=1632117x315=535584x191=1604413x825=1072550x771=3855026x317=824274x846=6260412x730=876087x588=5115639x316=1232477x871=6706714x266=372487x240=2088026x352=915297x695=6741555x297=1633558x272=1577680x732=5856016x660=1056022x538=1183614x652=912857x455=2593539x510=19059x345=2035511x279=306967x347=2324916x456=729629x403=1168781x116=939693x322=2994655x877=4823533x157=518129x344=997669x852=58785x699=60593x356=3310851x593=3024328x576=1612861x224=13695x751=7134588x201=17680x132=1188022x121=266222x672=1478461x871=5313143x386=1659861x284=17324x342=1846859x515=3038587x705=6133511x148=162884x811=6812444x150=660031x596=1847652x404=2100874x272=2012880x841=6728087x772=671