四年级下册简便运算100道158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065899+3442357-183-317-3572365-1086-214497-2992370+19953999+4981883-39812×2575×24138×25×4(13×125)×(3×8)(12+24+80)×50704×2525×32×12532×(25+125)88×125102×7658×98178×101-17884×36+64×8475×99+2×7583×102-83×298×199123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷7516800÷12030100÷210032000÷40049700÷7001248÷243150÷154800÷2521500÷1252356-(1356-721)1235-(1780-1665)75×27+19×2531×870+13×3104×(25×65+25×28)(1)(78+61)+39(2)700-82-18(3)348+163+242+410+537(4)125×47-47×25(5)201×316(6)374-205+226-95(7)3000-999(8)997×7+21(9)87×470+870×53(10)(55+55+55+55×5)×125(11)125×(8+40)×25(12)99+49×99(13)264×97+4×264(14)454+999×999+545(15)9999×36+6666×3×32(16)124×38+65×124+76×110-76×7(17)62×4+44×5+5×18(18)3400-62×34-38×20-38×14(19)1992×19911991-1991×19901990(20(2+4+6+……+100)-(1+3+5+……+99)1.2.73+0.89+1.272.4.37+0.28+1.63+5.721.10-0.432-2.5682.9.3-5.26-2.743.13.4-(3.4+5.2)4.14.9-(5.2+4.9)5.18.32-5.47-4.326.17.29-5.28-6.291.25×6.8×0.042.0.25×32×0.1253.6.4×1.25×12.51.0.45×2012.0.58×10.13.50.2×994.4.7×9.95.3.28×5.7+6.72×5.76.2.1×99+2.17.1.7×9.9+0.178.23×0.1+2.3×9.91.0.18+4.26-0.18+4.26☆2.0.58×1.3÷0.58×1.3☆3.7.3÷4+2.7×0.25☆4.3.75×0.5-2.75÷2☆5.5.26×0.125+2.74÷8☆a÷b÷c=a÷(b×c)6.6.3÷1.87.4.2÷3.58.9.5÷(1.9×8)9.12.8÷(0.4×1.6)10.930÷0.6÷511.63.4÷2.5÷0.412.(7.7+1.54)÷0.713.(11.7+9.9)÷0.9