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2018人教版四年级下册数学简便计算题

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88×225+225×12 698-291-9 568-(68+178)

382+165+35-82 (375+1034)+(966+125) 155+256+45-98

759-126-259 216+89+11 75×99+2×75

1050÷15÷7 7200÷24÷30 219 ×99 (2130+783+270)+1017

58×101 76 ×102 78×46+78×54 169×123—23×169

129×101—129 56×51+56×48+56 125×25×32 24×25

514+189—214 732—254—332 56×25×4×125

24×74+26×24 228+(72+189) 109+(291—176)

参考答案 第一类:加

65+73+135 357+288+143 272+68+28 =65+135+73 =357+143+288 =272+28+68 =273 =788 =368

129+235+171+165 17+145+23+35 999+99+9+3

=129+171+(235+165) =17+23+(145+35) =999+1+(99+1)+(9+1) =700 =220 =1110 6+7+8+102+103+104 9998+3+99+998+3+9

=102+8+(7+103)+(6+104) =9998+2+(99+1)+(998+1)+(9+1) =330 =11110 第二类:减

400-256-44 517-53-47 284-159-41 =400-(256+44) =517-(53+47) = 284-(156+41) =100 =417 =84

258-42-16 545-167-145 478-47-178 =258-(42+16) =545-145-167 =478-178-47 =200 =233 =233 344-(144+37) 236-(177+36) =244-144-37 =236-36-177 =63 =23 第三类:乘

45×4×5 23 ×5×2 25×9×4 =45×(4×5) =23×(5×2) =25×4×9 =90 =230 =900

8×(125×13) (250×125)×(4×8) 88×125 =8×125×13 =125×8×(250×4) =8×125×11 =13000 =1000000 =11000 72×125 125×64×25 42×125×8×5 =8×125×9 =125×8×(25×8) =42×5×(125×8) =9000 =200000 = 210000 25×4×88×125

=100×(8×125) ×11 =1100000

第四类:乘

(12+50)×40 125×(40-4) 76×103 =12×40+50×40 =125×40-125×4 =76×(100+3)

=880 =5400 =76×100+76×3 =7828 18×125 25×44 42×25 99×9 =(10+8)×125 =25×4×11 =2×25×21 =10×125+8×125=2250 =110 =1050 99×78

=(100-1) ×78

=100×78-1×78 =7722

第五类:乘

45×37+37×55 28×21+28×79 17×23-23×7 =37×+(45+55) =28×(21+79) =23×(17-7) =3700 =2800 =230

38×46+64×38 99×32+32 46+46×59 =38×(46+64) =32×(99+1) = 46×(59+1) =38×110 =3200 =2760 =38×(100+10) =38×100+38×10 =4180

167×2+167×3+167×5 39×8+6×39-39×4 =167×(2+3+5) =39×(8+6-4) =1670 =390

28×225-2×225-6×225 (42+25)×125+(18+15)×125 =225×(28-2-6) =125×(42+18+25+15) =4500 =12500

23×2×4+25×4×2+27×1×8+25×8×1 99×22+33×34 =8×(23+25+27) =33×(66+34) =600 =3300 第六类:除

360÷4÷9 250÷5÷2 600÷12÷5 =360÷(4×9) = 250÷(5×2) =600÷(12×5) =10 =25 =10

800÷5÷8 480÷5÷48 240÷5÷12 =800÷8÷5 =480÷48÷5 =240÷12÷5 =20 =2 =4

420÷35 2400÷25 7800÷12 =420÷7÷5 =2400÷5÷5 =7800÷6÷2 =12 =96 =650 第七类:加减

92+99 197+102 354-108 =92+(100-1) =197+(100+2) =354-(100+8) =92+100-1 =197+100+2 =354-100-8 =191 =299 =246

405-99 127-98 323+189-123 =405-(100-1) =127-(100-2) =323-123+189 = 405-100+1 =127-100+2 =389 =306 =29

248+86-48 672-36+64 (6467-832)+(1832-1467) =248-48+86 =672-(36+64) =6467-1467+(1832-832) = 286 =572 =6000

1530+(592-530)-192 (2+4+6+……+98+100)-(1+3+5+……+97+99) =1530-530+(592-192) =(2-1)+(4-3)+…+(98-97)+(100-99) =1400 =1+1+...+1+1 =50

第八类:乘除

960×46÷48 99000÷121×11 3702×38÷1234 =960÷48×46 =99000÷(121÷11) =1234×3×38÷1234 =920 =9000 =114 640÷(16÷4) 1000÷(125÷4) =640÷16×4 =1000÷125×4 =160 =32 第九类:加减乘除

(98+147)÷49 (230-23)÷23 (250-25)÷25 =98÷49+147÷49 =230÷23-23÷23 =250÷25-25÷25 =5 =9 =9

1736÷28+1064÷28 125×(860+240÷12) 700+612÷12×4 =(1736+1064) ÷28 =125×880 =700+612÷3÷4×4 =100 =125×8×110 =700+204 =110000 =904

(37+15)×85+1360 2005×20062006-2006×20052005 =50×85+2×85+1360 =2005×2006×10001-2006×2005×10001 =4250+170+1360 =0 =5610+170=5780

42×125×8×5 25×4×88×125 =125×8×(42×5) =100×11×(8×125) =210000 =1100000

(12+50)×40 125×(40-4) 86×103 =12×40+50×40 =125×40-125×4 =86×(100+3) =680 =4500 =86×100+86×3

=8858

18×125 25×44 42×25 =(10+8) ×125 =25×4×11 =2×25×21 =125×10+125×8 =1100 =1050 =2250

99×9 99×78 45×38+38×55 =(100-1) ×9 =(100-1) ×78 =(45+55) ×38 =100×9-9 =78×100-78 =3800 =91 =7722

28×21+28×79 37×23-23×7 38×46+64×38 =(21+79) ×79 =(37-7) ×23 =(46+64) ×38 =7900 =690 =3800

99×32+32 46+46×59 167×2+167×3+167×5 =(99+1) ×32 =(59+1) ×59 =(2+3+5) ×167 =3200 =3540 =1670

39×8+6×39-39×4 28×225-2×225-6×225 =(8+6-4) ×39 =(28-2-6) ×225 =390 =2500

(42+25)×125+(18+15)×125 65+73+135 357+288+143

=[(42+18)+(25+15)] ×125 =65+135+73 =357+143+288 =12500 =273 =788

272+68+28 129+235+171+165 17+145+23+35 =272+28+68 =129+171+(235+165) =17+23+(145+35) =368 =700 =220

400-256-44 517-53-47 284-159-41 258-42-16 =400-(256+44) =517-(53+47) =284-(159+41) =100 =417 =84

545-167-145 478-47-178 344-(144+37) =545-145-167 =478-178-47 =344-144-37 =233 =253 =163

236-(177+36) 45×4×5 23 ×5×2 =236-36-177 =45×(4×5) =23×(5×2) =23 =90 =230

25×9×4 8×(125×13) (250×125)×(4×8) =25×4×9 =8×125×13 =250×4×(125×8) =900 =13000 =1000000 88×125 72×125 125×64×25 =11×(8×125) =9×(8×125) =125×8×(8×25) =11000 =9000 =100000

42×125×8×5 25×4×88×125 (12+50)×40 =42×5×(8×125) =100×11×(8×125) =12×40+50×40 =210000 =1100000 =2480

125×(40-4) 76×103 18×125 =125×40-125×4 =76×(100+3) =(10+8) ×125 =4500 =76×100+3×76 =10×125+8×125 =7828 =2250 25×44 42×25 99×9 99×78 =25×(40+4) =(40+2) ×25 =(100-1) ×9 =(100-1) ×78 =25×40+25×4 =40×25+2×25 =9×100-9 =7800-78 =1100 =1050 =891 =7722 45×37+37×55 28×21+28×79 17×23-23×7 =(45+55) ×37 =(21+79) ×79 =(17-7) ×23 =3700 =7900 =230 38×46+64×38 99×32+32 46+46×59 =(46+64) ×38 =(99+1) ×32 =(59+1) ×46 =110×38 =3200 =2760 =(10+100) ×38 =38×10+38×100 =4180 167×2+167×3+167×5 39×8+6×39-39×4 360÷4÷9 =(2+3+5) ×167 =(8+6-4) ×39 =360÷(4×9) =1670 =390 =10 250÷5÷2 600÷12÷5 800÷5÷8 480÷5÷48

2018人教版四年级下册数学简便计算题

88×225+225×12698-291-9568-(68+178)382+165+35-82(375+1034)+(966+125)155+256+45-98759-126-259216+89+1175×99+2×751050÷15÷7
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