1、四年级数学下册简便计算专项练习题大全9741585874125(86)9090797011212408060808299925(12+4)4541001454429942825521191952125(82)54545910012727976336376100125(28+4)29111291649647225731141473125(810)151519401262617399732510125(36+4)2151012156799678025131515113125(86)3838195011414211279122699925(32+4)3951001395699691612540134
2、3440125(84)4545997012424546346636299925(16+4)4951149592999925625791373779125(84)43431990144448964116469100125(24+4)51511515439438025661929266125(88)68688950194942257785732100125(40+4)29410012948798772125211181821125(810)5858997014343967747769100125(24+4)1911119144994456125471252547125(82)71719100140
3、401033903370100125(20+4)423100142335993524125651808065125(88)4343796013333824118416510125(4+4)320113206099604025621717162125(82)35356990184844487568788100125(36+4)15010011507297232125781181878125(88)40409701515189491149669925(36+4)216112167097064125741333374125(84)333396019191289272928799925(16+4)42
4、9100142930999308125111444411125(88)6262595018585563244321199925(20+4)518101518729997256125791868679125(810)9595794015454148586854810125(8+4)31510131538999386425501696950125(82)36364920196965542454223100125(16+4)38810013887099704825291111129125(88)2525592019090558045801699925(20+4)2751012753093016125981606098125(82)90909601272730627062969925(40+4)5531155378999788125191898919125(86)545469601727275212521239925(28+4)495101495469461625261989826125(86)272729301818155534553729925(16+4)558100155869999696425