【江苏地区真题】小学数学毕业考试分类汇编-计算题
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【江苏地区真题】小学数学毕业考试分类汇编-计算题
1.(2022·海安)下面各题,怎样算简便就怎样算。
①700﹣1.5÷7×30
②14.1﹣4.63+1.6﹣2.37
③(79+225)×9+725
④58÷[25×(76﹣34)]
2.(2022·鼓楼)能简算的要简算:
①13+59+23+49
②57−(59−27)
③0.79×99+0.79
④3.8×97+0.38×30
⑤1−58+2528−310
⑥(19﹣112)×9×12
3.(2022·浦口)混合运算,能简便的要简便。
(1)800-375÷25
(2)38×47+107÷83
(3)95−(415÷13+617)
(4)23×[(56−12)÷49]
4.(2022·泗洪)计算下面各题,能简算的要简算
①23÷(54−49−59)
②87÷95+87×49
③12.5×0.32×2.5
④5÷59+59÷5
⑤18×(59−27)×14
⑥4.5×26+45×7.4
5.(2021·建邺)能简算就要简算。
①34×115−34×15
②1.25×1.3×80
③7.28-3.14+1.72-2.86
④5÷57−57÷5
⑤(112+19−318)×36
⑥1−12−14−18−116−132
6.(2021·泗洪)脱式计算,能简算的要简算。
①(3618÷18-145)×20
②6÷ 35 - 35 ÷6
③(21+ 38 )× 13 + 78
④58 ×[ 23 ÷( 56 - 14 )]
⑤3.5×98+35×0.2
7.(2021·兴化)下面各题,能简便计算的用简便方法计算。
(1)25%×32×12.5%
(2)109 × 56 - 19 ÷ 65
(3)23 ÷[ 914 ×( 56 - 49 )]
8.(2021·苏州)计算,怎样算简便就怎样算。
①98 -( 67 - 58 )- 17
②875-375÷25
③12.5×32×0.25
④48×75%+53× 34 -0.75
⑤910÷[(25−110)×34]
9.(2021·苏州)计算,能简便的要简算。
(1)58 ÷( 16 + 34 )
(2)18 ×58+ 18 ×41+ 18
(3)9.7﹣3.79+1.3﹣6.21
(4)( 38 + 112 )×48
10.(2021·广陵)下面各题,能简算的要简算。
①600﹣300÷20×5
②(4.8﹣3.8÷2)×0.3
③3.45×99×2+6.9
④(8+ 49 )÷4
⑤813 ÷9+ 19 × 113
⑥910 ÷[ 12 ×( 65 - 13 )]
11.(2021·灌南)下面各题,怎样算简便就怎样算。
(1)3.8+3.8×99
(2)25×2.7×0.4
(3)8÷ 89 ﹣ 89 × 18
(4)910 ÷[( 56 ﹣ 13 )× 12 ]
12.(2022·启东)计算或解比例。
①(2015+ 12013 )× 12014
②1349 ×21+13× 2849
③12 + 14 + 18 + 116 + 132
④666×325−555111+666×324
⑤1- 15 x= 310
⑥16 :x= 110 : 14
13.(2022·启东)认真计算,反复检查(能简算的要简算)。
(1)635 ×3574+642.9×66 -3÷ 533
(2)6115 × 56 + 8135 × 58 - 7134 × 47
(3)318 × 819 + 1118 × 319
(4)1+ 316 + 5112 + 7120 + 9130 + 11142
14.(2022·南通)怎样算简便就怎样算。
(1)( 14 +0.75- 512 )×24
(2)920 ÷[ 32 ×( 12 + 13 )]
(3)0.32×2.5×12.5
(4)920 × 1125 + 1425 ÷ 209
15.(2022·太仓)递等式计算,能简算的要简算。
①360÷15-2.5×1.6
②6.54-3.84-0.16+2.55
③376 ÷ 110 + 376 ÷ 19
④1415 ×( 514 + 521 )+ 23
⑤127 -( 32 ÷ 2110 - 13 )
⑥512 ×[( 58 - 35 )÷ 18 ]
16.(2022·海安)求未知数x。
(1)0.54x÷3=6.3
(2)42:35=x:57
17.(2022·鼓楼)解方程。
(1)12 :13=6:x
(2)2x+3x=25
(3)40%x﹣12=42
18.(2022·浦口)解方程或比例。
(1)2x+1=5
(2)12:x=16:25
19.(2022·泗洪)解方程
(1)x−35x=12
(2)1−14x=18
(3)x4=16:13
20.(2022·海安)解比例。
(1)2.5:x=0.4:0.2
(2)3.50.7=8x
(3)5:x= 23 : 45
21.(2022·海安)解比例。
(1)x:3.5=4:21
(2)x8=4.53.6
(3)314 :x= 542 : 14
22.(2021·建邺)求未知数x。
(1)x-60%x= 1625
(2)2.4x =8:30
(3)1- 14 x= 14
23.(2021·泗洪)求x的值
(1)56 + 16 x=2
(2)0.75x = 258
(3)2.5:x=9:12
24.(2021·兴化)解方程。
(1)x:12= 314 : 27
(2)7x÷ 12 = 35
(3)78 ×16-30%x=1.7
25.(2021·苏州)解方程或比例。
(1)710x+110=910
(2)2.75x−25%x=1.5
(3)x:18=56:10
26.(2021·苏州)解方程或比例。
(1)5(x+2.3)=25
(2)12: 35 = x :0.5
(3)x : 14 =28: 16
27.(2021·广陵)求未知数x。
(1)16+4x=40
(2) 14 x+ 25 x=13
(3)x:18= 56 : 35
28.(2021·灌南)求未知数x。
(1)14 : 18 =x: 110
(2)2.4:x= 15 :5
(3)x﹣ 59 x= 821
(4)2.5x﹣0.5×6=7
29.(2022·太仓)求未知数x。
(1)0.2x+0.76=1.96
(2)28:x= 75 : 13
(3)45 x-30%x=0.2
30.(2022·阜宁)求x的值。
(1)45 x-30%x=2
(2)24x = 65
(3)0.2x+0.76=0.88
答案解析部分
1.【答案】解:①700-1.5÷7×30
=700- 314 ×30
=700- 457
=69347
②14.1-4.63+1.6-2.37
=14.1+1.6-(4.63+2.37)
=15.7-7
=8.7
③( 79 + 225 )×9+ 725
= 79 ×9+ 225 ×9+ 725
=7+( 1825 + 725 )
=7+1
=8
④58 ÷[ 25 ×( 76 - 34 )]
= 58 ÷[ 25 ×( 1412 - 912 )]
= 58 ÷[ 25 × 512 ]
= 58 ÷ 16
= 58 ×6
= 154
2.【答案】解:①13+59+23+49
=( 13 + 23 )+( 59 + 49 )
=1+1
=2
②57−(59−27)
= 57 + 27 -59
=1-59
= 49
③0.79×99+0.79
=0.79×(99+1)
=0.79×100
=79
④3.8×97+0.38×30
=3.8×(97+3)
=3.8×100
=380
⑤1−58+2528−310
= 38 + 2528 -310
=2156+5056−310
=7156−310
=355280−84280
=271280
⑥( 19 - 112 )×9×12
= 19 ×9×12- 112 ×9×12
=12-9
=3
3.【答案】(1)解:800-375÷25
=800-15
=785
(2)解:38×47+107÷83
=38×47+107×38
=38×(47+107)
=38×2
=34
(3)解:95-(415÷13+617)
=95-(45+617)
=95-9885
=1117
(4)解:23×[(56-12)÷49]
=23×(13÷49)
=23×34
=12
4.【答案】解:①23÷(54−49−59)
=23÷14
=83
②87÷95+87×49
=87×59+87×49
=87×(59+49)
=87
③12.5×0.32×2.5
=(12.5×0.8)×(0.4×2.5)
=10×1
=10
④5÷59+59÷5
=9+19
=919
⑤18×(59−27)×14
=59×18×14-27×14×18
=140-72
=68
⑥4.5×26+45×7.4
=4.5×26+4.5×74
=4.5×(26+74)
=4.5×100
=450
5.【答案】①34×115-34×15
=34×(115-15)
=34×100
=75
②1.25×1.3×80
=(1.25×80)×1.3
=100×1.3
=130
③7.28-3.14+1.72-2.86
=(7.28+1.72)-(3.14+2.86)
=8-6
=2
④5÷57-57÷5
=7-17
=667
⑤(112+19-318)×36
=112×36+19×36-318×36
=3+4-6
=1
⑥1-12-14-18-116-132
=1-(12+14+18+116+132)
=1-(1-132)
=132
6.【答案】①(3618÷18-145)×20
=(201-145)×20
=56×20
=1120
②6÷ 35 - 35 ÷6
=6×53- 35×16
=10-110
=9910
③(21+38) ×13+78
=21×13+38×13+78
=7+(18+78)
=7+1
=8
④58×[23÷(56-14)]
=58×(23÷712)
=58×87
=57
⑤3.5×98+35×0.2
=3.5×98+3.5×2
=3.5×(98+2)
=3.5×100
=350
7.【答案】(1)略
(2)略
(3)略
8.【答案】①98-(67-58)-17
=98-67+58-17
=(98+58)-(67+17)
=74-1
=34
②875-375÷25
=875-15
=860
③12.5×32×0.25
=12.5×(8×4)×0.25
=(12.5×8)×(4×0.25)
=100×1
=100
④48×75%+53×34-0.75
=48×0.75+53×0.75-0.75×1
=0.75×(48+53-1)
=0.75×100
=75
⑤910÷[(25−110)×34]
=910÷(310×34)
=910÷940
=4
9.【答案】(1)58÷(16+34)
=58÷1112
=1522
(2)18×58+18×41+18
=18×(58+41+1)
=18×100
=12.5
(3)9.7-3.79+1.3-6.21
=(9.7+1.3)-(3.79+6.21)
=11-10
=1
(4)(38+112)×48
=38×48+112×48
=18+4
=22
10.【答案】解:①600-300÷20×5
=600-15×5
=600-75
=525
②(4.8-3.8÷2)×0.3
=(4.8-1.9)×0.3
=2.9×0.3
=0.87
③3.45×99×2+6.9
=6.9×99+6.9
=6.9×(99+1)
=6.9×100
=690
④(8+ 49 )÷4
=769×14
=199
⑤813 ÷9+ 19 × 113
=(813+113)×19
=913×19
=113
⑥910 ÷[ 12 ×( 65 - 13 )]
=910÷[12×1315]
=910÷1330
=2713
11.【答案】(1)解:3.8+3.8×99
=3.8×(1+99)
=3.8×100
=380
(2)解:25×2.7×0.4
=25×0.4×2.7
=10×3.7
=27
(3)解:8÷ 89 ﹣ 89 × 18
=9﹣19
=889
(4)解:910 ÷[( 56 ﹣ 13 )× 12 ]
= 910 ÷( 12 × 12 )
= 910 ÷ 14
= 185
12.【答案】①(2015+12013)×12014
=(2014+20142013)×12014
=2014×12014+20142013×20142013
=1+12013
=112013;
②1349×21+13×2849
=1349×21+28×1349
=1349×(21+28)
=1349×49
=13;
③12+14+18+116+132
=2×(12+14+18+116+132)-(12+14+18+116+132)
=(1+12+14+18+116)-(12+14+18+116+132)
=1-132
=3132;
④666×325−555111+666×324
=111×(6×325−5)111×(1+6×324)
=6×325−51+6×324
=6×324−5+61+6×324
=6×324+11+6×324
=1;
⑤1-15x=310
解:15x=1-310
15x=710
15x×5=710×5
x=72;
⑥16:x=110:14
解:110x=16×14
110x×10=16×14×10
x=512。
13.【答案】(1)解: 635 ×3574+642.9×66 -3÷ 533
=6.6×3574+6429×6.6-3×6.6
=6.6×(3574+6429-3)
=66000
(2) 6115 × 56 + 8135 × 58 - 7134 × 47
=( 60+65 )× 56 +( 80+85 )× 58 -( 70+74 )× 47
=60×56+65×56+80×58+85×58−70×47−74×47
=50+1+50+1-40-1
=61
(3)解: 318 × 819 + 1118 × 319
= 318 × 819 + 318 × 1119
= 318 ×( 819 + 1119 )
= 318
(4)解:1+ 316 + 5112 + 7120 + 9130 + 11142
=(1+3+5+7+9+11)+( 12 - 13 + 13 - 14 + 14 - 15 + 15 - 16 + 16 - 17 )
=36 514
14.【答案】(1)( 14 +0.75- 512 )×24
=(14+34-512)×24
=1×24-512×24
=24-10
=14
(2)920 ÷[ 32 ×( 12 + 13 )]
=920÷[32×56]
=920×45
=925
(3)0.32×2.5×12.5
=0.8×0.4×2.5×12.5
=0.8×12.5×0.4×2.5
=10×1
=10
(4)920 × 1125 + 1425 ÷ 209
=920×1125+1425×920
=(1125+1425)×920
=1×920
=920
15.【答案】①360÷15-2.5×1.6
=24-4
=20
②6.54-3.84-0.16+2.55
=6.54+2.55-(3.84+0.16)
=9.09-4
=5.09
③376÷110+376÷19
=376×10+376×9
=376×(10+9)
=376×19
=34
④1415×(514+521)+23
=1415×514+1415×521+23
=13+29+23
=129
⑤127-(32÷2110-13)
=127-(32×1021-13)
=127-(57-13)
=127-57+13
=1+13
=113
⑥512×[(58-35)÷18]
=512×[(58-35)×8]
=512×(58×8-35×8)
=512×(5-245)
=512×5-512×245
=2512-2412
=112
16.【答案】(1)解:0.54x÷3=6.3
0.54x÷3×3=6.3×3
0.54x÷0.54=18.9÷0.54
x=35
(2)解:42:35=x:57
35x=42× 57
35 x÷ 35=30÷ 35
x=50
17.【答案】(1)解: 12 : 13 =6:x
12 x= 13 ×6
12 x÷ 12 =2÷ 12
x=4
(2)解:2x+3x=25
5x=25
5x÷5=25÷5
x=5
(3)解: 40%x-12=42
40%x-12+12=42+12
40%x÷40%=54÷40%
x=135
18.【答案】(1)解:2x+1=5
2x=5-1
2x=4
x=4÷2
x=2
(2)解:12:x=16:25
16x=12×25
16x=15
x=15×6
x=65
19.【答案】(1)解:25x=12
x=12÷23
x=18
(2)解:1-14x+14x=18+14x
14x=1-18
x=78÷14
x=72
(3)解:13x=16×4
x=23÷13
x=2
20.【答案】(1) 2.5:x=0.4:0.2
解:0.4x=2.5×0.2
0.4x=0.5
0.4x÷0.4=0.5÷0.4
x=1.25
(2) 3.50.7=8x
解:3.5x=8×0.7
3.5x=5.6
3.5x÷3.5=5.6÷3.5
x=1.6
(3) 5:x=23 :45
解:23x=5×45
23x=4
23x÷23=4÷23
x=6
21.【答案】(1) x:3.5=4:21
解:21x=3.5×4
21x=14
x=14÷21
x=23
(2) x8=4.53.6
解:3.6x=8×4.5
3.6x=36
x=36÷3.6
x=10x=10
(3) 314 :x= 542 : 14
解:542x=314×14
542x=356
x=356×425
x=920
22.【答案】(1) x-60%x=1625
解:40%x=1625
40%x÷40%=1625÷40%
x=85
(2) 2.4x=8:30
解:8x=2.4×30
8x÷8=72÷8
x=9
(3) 1-14x=14
解:14x=34
14x÷14=34÷14
x=3
23.【答案】(1) 56+16x=2
解:16x=2-56
x=76÷16
x=7
(2) 0.75x=258
解:25x=0.75×8
x=6÷25
x=625
(3)2.5:x=9:12
解:9x=2.5×12
x=30÷9
x=103
24.【答案】(1)略
(2)略
(3)略
25.【答案】(1)710x+110=910 解:710x=910−110
x=45÷710
x=87
(2)2.75x-25%x=1.5
解:2.5x=1.5
x=1.5÷2.5
x=0.6
(3) x:18=56:10
解:10x=18×56
x=15÷10
x=1.5
26.【答案】(1)5(x+2.3)=25
解:x+2.3=5
x+2.3-2.3=5-2.3
x=2.7
(2) 12:35=x:0.5
解:35x=12×0.5
35x÷35=6÷35
x=10
(3) x:14=28:16
解: 16x=14×28
16x=7
16x÷16=7÷16
x=42
27.【答案】(1)解:4x=40-16
4x=24
x=24÷4
x=6
(2)解:1320x=13
x=13÷1320
x=20
(3)解:35x=18×56
35x=15
x=15÷35
x=25
28.【答案】(1)解: 18 x= 140
8× 18 x=8× 140
x= 15
(2)解:15x=2.4×5
15x=12
x=12÷15
x=60
(3)解:49 x=821
x=821÷49
x=67
(4)解:2.5x-3=7
2.5x=10
x=10÷2.5
x=4
29.【答案】(1)0.2x+0.76=1.96
解:0.2x=1.96-0.76
0.2x=1.2
x=6
(2) 28:x= 75 : 13
解:75x=28×13
75x=283
x=283×57
x=203
(3) 45 x-30%x=0.2
解:810x-310x=210
8x-3x=2
5x=2
x=25
30.【答案】(1) 45 x-30%x=2
解:0.8x-0.3x=2
0.5x=2
x=4
(2) 24x=65
解:6x=24×5
6x=120
6x÷6=120÷6
x=20
(3) 0.2x+0.76=0.88
解: 0.2x+0.76-0.76=0.88-0.76
0.2x=0.12
0.2x÷0.2=0.12÷0.2
x=0.6
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