四年级下册数学简便计算题
第一类:加
65+73+135 357+288+143 272+68+28
129+235+171+165
6+7+8+102+103+104
第二类:减
400-256-44
258-42-16
344-(144+37)
17+145+23+35 999+99+9+3 9998+3+99+998+3+9 517-53-47 284-159-41 545-167-145 478-47-178 236-(177+36) 1 .
.
第三类:乘
45×4×5 23 ×5×2 25×9×4
8×(125×13) (250×125)×(4×8) 88×125
72×125 25×4×88×125
第四类:乘
(12+50)×40
18×125 99×78
125×64×25 42×125×8×5 125×(40-4) 76×103 25×44 42×25 99×9 2 .
.
第五类:乘
45×37+37×55 28×21+28×79 17×23-23×7
38×46+64×38 99×32+32 46+46×59
167×2+167×3+167×5 39×8+6×39-39×4
28×225-2×225-6×225 (42+25)×125+(18+15)×125
23×2×4+25×4×2+27×1×8+25×8×1 99×22+33×34
第六类:除
360÷4÷9 250÷5÷2 600÷12÷5
3 .
.
800÷5÷8 480÷5÷48 240÷5÷12
420÷35 2400÷25 7800÷12
第七类:加减
92+99 197+102 354-108
405-99 127-98 323+189-123
248+86-48 672-36+64 (6467-832)+(1832-1467)
1530+(592-530)-192 (2+4+6+……+98+100)(-1+3+5+……+97+99)
第八类:乘除
960×46÷48 99000÷121×11 3702×38÷1234
4 .
.
640÷(16÷4) 1000÷(125÷4)
第九类:加减乘除
(98+147)÷49 (230-23)÷23 (250-25)÷25
1736÷28+1064÷28
(37+15)×85+1360
42×125×8×5
(12+50)×40
18×125
125×(860+240÷12) 700+612÷12×4 2005×20062006-2006×20052005 25×4×88×125 125×(40-4) 86×103 25×44 42×25 5 .
.
99×9 99×78 45×38+38×55
28×21+28×79 37×23-23×7 38×46+64×38
99×32+32 46+46×59 167×2+167×3+167×5
39×8+6×39-39×4 28×225-2×225-6×225
(42+25)×125+(18+15)×125 65+73+135 357+288+143
272+68+28 129+235+171+165 17+145+23+35
6 .
.
400-256-44 517-53-47 284-159-41 258-42-16
545-167-145 478-47-178 344-(144+37)
236-(177+36)
25×9×4
88×125
42×125×8×5
125×(40-4)
45×4×5 23 ×5×2 8×(125×13) (250×125)×(4×8) 72×125 125×64×25 25×4×88×125 (12+50)×40 76×103 18×125 7 .
.
25×44 42×25 99×9 99×78
45×37+37×55 28×21+28×79 17×23-23×7
38×46+64×38 99×32+32 46+46×59
167×2+167×3+167×5 39×8+6×39-39×4 360÷4÷9
250÷5÷2 600÷12÷5 800÷5÷8 480÷5÷48
240÷5÷12 420÷35 117+392+608 88×27+27×12
8 .
.
87×53+87×47 7×75-7×25 234―66―34
528―53―47 435-(135+189) 167×25+32×25+25
38×99+38
108×75
25×7×4
125×88
420÷35÷2
147+147×99 35×201 2×125×8×6 25×48 30+255+70 9 .
25×(4+8) 75×98 25×32×125 3500÷4÷25 282+41+159 .
88×27+27×12 6.3 ÷ 1.8 125×64+125×36
64×199+64 528―53―47 158+395+105
4800÷25 (13×8×5×6)÷(4×5×6) 2.1 × 99 + 2.1
0.18 +4.26 -0.18 +4.26 8100÷4÷75 16800÷120
1248÷24 3150÷15 (10000-1000-100-10)÷10
138+293+62+107 99+999+9999+99999 66.86-8.66-1.34
10 .
.
8811÷89 10 - 0.432 - 2.568 98×199
25 × 6.8 × 0.04 355+260+140+245 102×99 2×125
645-180-245
101×56
4×60×50×8
63.4 ÷ 2.5 ÷ 0.4
36+64-36+64
125×32 25×46 99×26 382×101-382 930 ÷ 0.6 ÷5 1022-478-422 2357-183-317-357 672-36+64 500-257-34-143 755-287+87 11 .
.
1814-378-422 89×99+89 3999+498
88×225+225×12 698-291-9 568-(68+178)
382+165+35-82 155+256+45-98
759-126-259 216+89+11 75×99+2×75
1050÷15÷7 7200÷24÷30 219 ×99
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
12 .
.
514+189—214 732—254—332 56×25×4×125
24×74+26×24 228+(72+189) 109+(291—176)
(375+1034)+(966+125)
(2130+783+270)+1017 13 .
.
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
14 .
.
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
15 .
.
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
16 .
.
=[(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
17 .
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=250÷(5×2) =600÷(12×5) =800÷8÷5 =480÷48÷5 =25 =10 =20 =2
240÷5÷12 420÷35 117+392+608 88×27+27×12 =240÷12÷5 =420÷7÷5 =117+(392+608) =(88+12) ×27 =4 =12 =1117 =2700
87×53+87×47 7×75-7×25 234―66―34 =(53+47) ×87 =(75-25) ×7 =234-34-66 =8700 =350 =134
528―53―47 435-(135+189) 167×25+32×25+25 =528-(53+47) =435-135-189 =(167+32+1) ×25 =428 =111 =5000
38×99+38 147+147×99 25×(4+8) =(99+1) ×38 =(99+1) ×147 =25×4+8×25 =3800 =14700 =300
108×75 35×201 75×98 =(100+8) ×75 =35×(200+1) =75×(100-2) =8100 =7035 =7350
25×7×4 2×125×8×6 25×32×125 =25×4×7 =2×6×(125×8) =25×4×(8×125) =700 =12000 =100000
125×88 25×48 3500÷4÷25 =25×8×11 =25×8×6 =3500÷(4×25) =11000 =600 =35 420÷35÷2 30+255+70 282+41+159 =420÷(35×2) =30+70+255 =282+(41+159) =60 =355 =482
88×27+27×12 6.3 ÷ 1.8 125×64+125×36 =(88+12) ×27 =6.3÷0.9÷2 =(64+36) ×125 =2700 =3.5 =12500
64×199+64 528―53―47 158+395+105 =64×(199+1) =528-(53+47) =158+(395+105) =12800 =428 =658
4800÷25 (13×8×5×6)÷(4×5×6) 2.1 × 99 + 2.1 =48×100÷25 =13×(8÷4) ×(5÷5) ×(6÷6) =2.1×(99+1) =48×4 =26 =210 =192
0.18 +4.26 -0.18 +4.26 8100÷4÷75 16800÷120 =4.26+4.26+(0.18-0.18) =(81x100)÷4÷(25x3) =(12000+4800)÷120 =8.52 =81÷3x(100÷4÷25) =140
18 .
.
1248÷24 3150÷15 (10000-1000-100-10)÷10 =1248÷12÷2 =3150÷5÷3 =10000÷10-1000÷10-100÷10-10÷10 =52 =210 =1000-(100+10+1) =889
138+293+62+107 99+999+9999+99999 =138+62+(293+107) =(99+1)+(999+1)+(9999+1)+(99999+1)-4 =500 =111096
66.86-8.66-1.34 8811÷89 10 - 0.432 - 2.568 98×199 =66.88-(8.66+1.34) =(8900-89)÷89 =10-(0.432+2.568) =98×(200-1) =56.88 =99 =7 =19502
25 × 6.8 × 0.04 355+260+140+245 102×99 2×125 =25×0.04×6.8 =355+245+(260+140) =99×(100+2) =2×5×25 =6.8 =1000 =10098 =250
645-180-245 125×32 25×46 =645-245-180 =125×8×4 =25×(40+6) =220 =4000 1150
101×56 99×26 382×101-382 =(100+1) ×56 =(100-1) ×26 =382×(101-1) =5656 =2574 =38200
4×60×50×8 930 ÷ 0.6 ÷5 1022-478-422 =4×50×(60×8) =930÷(0.6×5) =1022-(478+422) =96000 =310 =122
63.4 ÷ 2.5 ÷ 0.4 2357-183-317-357 672-36+64 =63.4 ÷(2.5×0.4) =2357-357-(183+317) =672-36-36+36+64
=63.4 =1500 =(672-72)+(36+64) =700
36+64-36+64 500-257-34-143 755-287+87 =(36-36)+(64+64) =500-(257+34)-143 =755-(287-87) =128 =57 =555
1814-378-422 89×99+89 3999+498 =1814-(378+422) =(99+1) ×89 =(4000-1)+(500-2) =1014 =8900 =4000+500-1-2 =4497 88×225+225×12 698-291-9 568-(68+178) =(88+12) ×225 =698-(291+9) =568-68-178 =22500 =398 =322
382+165+35-82 155+256+45-98 =382-82+(165+35) =(155+45)+256-(100-2) =500 =200+256-100+2 =358
759-126-259 216+89+11 75×99+2×75 =759-259-126 =216+(89+11) =75×(99+2) =374 =316 =75×100+75×1 =7575
19 .
.
1050÷15÷7 7200÷24÷30 219 ×99 =1050÷(15×7) =7200÷(24×30) =219×(100-1) =10 =10 =219×100-219×1 =21681 58 ×101 76 ×102 78×46+78×54 169×123—23×169 =58×(100+1) =76×(100+2) =(46+54) ×78 =(123-23) ×169 =5858 =7752 =7800 =16900 129×101—129 56×51+56×48+56 125×25×32 24×25 =(101-1) ×129 =(51+48+1) ×56 =125×8×(25×4) =8×25×3 =12900 =5600 =100000 = 300
514+189—214 732—254—332 56×25×4×125 =514-214+189 =732-332-254 =4×25×(8×125) ×7 =489 =146 =700000
24×73+26×24 228+(72+189) 109+(291—176)
=(74+26) ×24 =228+72+189 =109+291-176
=2400 =489 =324 (375+1034)+(966+125) (2130+783+270)+1017
=(375+125)+(1034+966) =2130+270+(783+1017)
=2500 =4200
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