小升初——四则混合运算(带答案)
单的多音字组词-清明节祭奠图片
小升初真题混合运算专项练习(有答案)
1.(2012•瑶海区)基本计算:
①428÷[32÷(4+4)]
﹣=
②127×8÷127×8
0.4
2
=
2.(2012•武胜县)计算.
9080﹣35×26
1÷=
17÷3.4+1.48
1﹣+=
÷( ﹣)×(
+)
6.(2012•桐庐县)计算.
3÷÷÷4
①92×13+28
②4.2÷1.5﹣0.36
(+)÷+
③78×
10÷[﹣( ÷+)]. ④1÷﹣÷1
3.(2012•武胜县)计算,能简算
的要简算.
⑤×5÷×5
2004+75×54÷45
(0.125×8﹣0.5)×4
⑥2﹣÷
32%×76.4+1.36×3.2
⑦36×(+)
×+÷
7.(2012•天柱县)脱式计算.
( ﹣)×( +)
3060÷15﹣25×1.04
×÷+
1110÷[56×( ﹣)]
4.(2012•武胜县)计算.
(+)×(÷5)
(108÷25)×(75÷18)
3.5×(20.6﹣16.8÷4.8)
×[﹣(﹣)].
( ﹣)×( +)
8.(2012•桃源县)脱式计算.
99×87+87
×[7﹣4÷( +)].
18.7﹣3.375﹣6.625
5.(2012•万州区)计算:
5×(+0.5)÷2
9﹣5.4=
780÷26=
÷[(﹣)÷].
3.14×3=
9.(2012•苏州)计算下面各题,
27×=
能简算的要简算.
①630÷18×24
625﹣199= ②0.7+3.9+4.3+6.1
10+0.1=
③16×+4×
0÷=
④(7.5﹣7.5×0.6)÷4
9.42×0.1=
⑤(+÷3)×
小升初真题混合运算----
1
⑥.
10.(2012•顺昌县)脱式计算.(能
简算的要简算)
①14×75﹣624÷39
②÷9+×
③+(﹣)÷
④÷[﹣(1﹣)].
11.(2012•泉州)用递等式计算
(1)1379+450÷18×40
(2)(3.2÷16+10.8)÷22
(3)×+×
(4)×÷( ﹣ )
(2012•硚口区)脱式计算.(友
情提醒:有的可以简算)
800﹣608÷32×5
3.68﹣3.6×0.2+0.18
48×9.9+48×0.1
(1﹣)÷0.25×4
(6﹣6×)÷12.
(2012•吉水县)脱式计算,能简
算的要简算.
97÷1+35.6+0×6
1375+450÷15×25
[4.5+(13×+13×)]÷
48×+48×+48×8
94.47﹣(94.47﹣86.555)
3.42×76.3+76.3×5.76+
9.18×23.7.
12.(2012•洪山区)能简便的要用
简便方法计算,写出主要过程
(1)360+240÷15×28
(2)6÷2.4﹣0.3×1.4
(3)×6+6×
(4)(﹣0.4)÷×.
15.(2012•凤阳县)用递等式计
算,能简算的要简算
(1)43×8﹣420÷15
(2)+2++3
(5.9+1.65)÷2.5
(+)×20÷
(
÷[(+)×].
)×13+4÷17.
6÷7﹣
27.(2011•海州区)神机妙算:
(2011•瑞安市) 2842÷14+74×3
(1)360+24÷15×30
(3)×÷15
(2)0.25×7.2+2.8÷0.5
(3)×29﹣8×
(4)(+)÷﹣
(5)3.9×9.77+0.23×3.9
(4)(+﹣)÷.
(6)+(﹣)×.
21.(2011•南县)下面各题,能简
算的要简算.(能简
算的要写出主要
16.(2011•漳州)计算下面各题,简算过程)
怎样简便就怎样计算. 109×x+109×x
420÷216÷18×17
9.5﹣(4.6+5.8)÷1.3
25×12.5×32
×+÷
23.(2011•金堂县)用自己喜欢
40÷[×(+)]
的方式计算下面各题(要写出主要
的解答过程)
17.(2011•游仙区)用自己喜欢的(1)3600﹣800÷40×35
方法算
(2)64﹣15.8﹣14.2
(315+285)÷(315﹣255)
(3)
5﹣(÷+)
(4)
(+﹣)×36
(5)
3.3×+0.75×3.7+75%×3.
(6)38÷[2.5×(4.36+3.64)].
18.(2011•永州)下面各题,怎样
24.(2011•淮南)选择合适的方
简便就怎样计算. 法计算(要写出主要的计算过程).
405×(20﹣172÷43) 6760÷13+17×21
×+×
3.33×4.5+4.5×6.67
17.31﹣6.15﹣3.85
÷[×(﹣)]. .
19.(2011•武昌区)递等式计算:
25.(2011•河西区)脱式计算.(能
360﹣225÷15×18 简算的要简算)
÷×
53×13+21
1.65×45+55×1.65
4.72﹣1.16﹣2.84
÷[1﹣(+)].
+÷+.
26.(2011•河池)用你喜欢的方法
20.(2011•田东县)计算下列各计算.
题. 25×12﹣850÷17
860﹣560÷8×7 0.25×99+25%
小升初真题混合运算----
2
÷( ﹣)
3.6×99+3.6
÷( ×)
×+÷
72×(﹣)
28.(2011•丰都县)脱式计算
(384+336)÷15×13
(11+30.6)÷16+16.5
2﹣×﹣
〔1﹣(+)〕÷.
29.(2010•自流井区)计算,能简
便的要简便
(73.6÷0.16+370)×18
3.84÷+5.16×
.
30.(2010•雨花区)计算下列各
题,能简便的要简便计算
3618÷45+1620
67﹣67×(23+19)
200.8×73﹣6.3×2008
118÷(14+2.5×45)
99﹣97+95﹣93+91﹣89+…+7﹣5+3
﹣1
2008÷2.
31.(2012•咸安区)灵活计算
①
②
③
④.
参考答案:
1.①428÷[32÷(4+4)], 3.(1)2004+75×54÷45,
=428÷[32÷8], =2004+4050÷45,
=428÷4,
=2004+90,
=107; =2094;
②127×8÷127×8,
(2)(0.125×8﹣0.5)×4,
=127÷127×8×8, =(1﹣0.5)×4,
=8×8, =0.5×4,
=64 =2;
2.(1)9080﹣35×26,
(3)32%×76.4+1.36×3.2,
=9080﹣910,
=32%×76.4+13.6×0.32
=8170; =0.32×(76.4+13.6),
(2)17÷3.4+1.48, =0.32×90,
=5+1.48, =28.8;
=6.48;
(4)×+÷,
(3)÷(﹣)×(+),
=+,
=÷×,
=;
=×(×),
(5)( ﹣)×( +),
=×,
=×,
=;
=;
(4)3÷÷÷4,
(6)1110÷[56×( ﹣)],
=9×÷4,
=12÷4,
=1110÷[56×﹣56×],
=3; =1110÷[24﹣21],
(5)(+)÷+,
=1110÷3,
=370
=×,
4.(1)(108÷25)×(75÷18),
=+, =×,
=;
=18;
(2)3.5×(20.6﹣16.8÷4.8),
(6)10÷[﹣(
÷+)],
=3.5×(20.6﹣3.5),
=3.5×17.1,
=10÷[﹣(+)],
=59.85;
(3)(﹣)×(+),
=10÷[﹣],
=×,
=10÷,
=81
=;
小升初真题混合运算----
3
(4)×[7﹣4÷( +)],
=×[7﹣4÷],
=×[7﹣4×],
=×[7﹣5],
=×2,
=.
5.9﹣5.4=3.6, 780÷26=30,
3.14×3=9.42, 27×=15,
625﹣199=426,
10+0.1=10.1,
0÷=0, 9.42×
0.1=0.942,
﹣=, 0.4
2
=0.16,
1÷=,
1﹣+=;
6.①92×13+28
=1196+28,
=1224;
②4.2÷1.5﹣0.36
=2.8﹣0.36,
=2.44;
③78×
=(79﹣1)×,
=79×﹣1×,
=3﹣,
=2;
④1÷﹣÷1
=4﹣,
=3;
⑤×5÷×5
=×5×5,
=1×5×5,
=25;
⑥2﹣÷
=2﹣,
=;
⑦36×(+)
=36×+36×,
=6+24,
=30.
7.(1)3060÷15﹣25×1.04
=204﹣26,
=178;
(2)×÷+
=×+,
=+,
=;
(3)(+)×(÷5)
=××,
=;
(4)×[﹣(﹣)].
=×[+﹣],
=×,
=.
8.(1)99×87+87,
=(99+1)×87,
=100×87,
=8700;
(2)18.7﹣3.375﹣6.625,
=18.7﹣(3.375+6.625),
=18.7﹣10,
=8.7;
(3)5×(+0.5)÷2,
=5×÷2,
=6÷2,
=3;
(4)÷[(﹣)÷],
=÷[÷],
=÷,
=.
9.①630÷18×24,
=35×24,
=840;
②0.7+3.9+4.3+6.1,
=(0.7+4.3)+(6.1+3.9),
=5+10,
=15;
③16×+4×,
=(16+4)×,
=20×,
=8;
④(7.5﹣7.5×0.6)÷4,
=(7.5﹣4.5)÷4,
=3÷4,
=0.75;
⑤(+÷3)×,
=(+×)×,
=(+)×,
=,
=;
⑥[()],
=×[÷()],
小升初真题混合运算----
4
=×[],
=[],
=,
=1
10.①14×75﹣624÷39
=1050﹣16,
=1034;
②÷9+×
=×+×,
=(+)×,
=×,
=;
③+(﹣)÷
=+×,
=+,
=;
④÷[﹣(1﹣)].
=÷[﹣],
=,
=.
11.(1)1379+450÷18×40,
=1379+25×40,
=1379+1000,
=2379;
(2)(3.2÷16+10.8)÷22,
=(0.2+10.8)÷22,
=11÷22,
=0.5;
(3)×+×,
=(+)×,
=1×, =[4.5+(13××2)]÷,
=; =[4.5+9.75]÷,
(4)×÷( ﹣ ), =14.25×,
=×÷,
=8.55;
(4)48×+48×+48×8
=××12,
=(++8)×48,
=×12×,
=9×48,
=3×,
=432;
(5)94.47﹣(94.47﹣86.555)
=.
=94.47﹣94.47+86.555,
=0+86.555,
12.(1)800﹣608÷32×5, =86.555;
=800﹣19×5,
(6)3.42×76.3+76.3×5.76+9.18
=800﹣95, ×23.7
=705; =(3.42+5.76)×76.3+9.18×23.7,
(2)3.68﹣
3.6×0.2+0.18, =9.18×76.3+9.18×23.7,
=3.68﹣0.72+0.18, =(76.3+23.7)×9.18,
=2.96+0.18, =100×9.18,
=3.14; =918
(3)48×9.9+48×0.1, 14.(1)360+240÷15×28,
=48×(9.9+0.1), =360+16×28,
=48×10,
=360+448,
=480; =808;
(4)(1﹣)÷0.25×4,
(2)6÷2.4﹣0.3×1.4,
=2.5﹣0.42,
=0.25÷0.25×4, =2.08;
=1×4,
=4;
(3)×6+6×,
(5)(6﹣6×)÷12, =(+)×6,
=(6﹣4)÷12, =1×6,
=2÷12, =6;
=.
(4)(﹣0.4)÷×,
13.(1)97÷1+35.6+0×6
=97+35.6+0,
=÷×,
=132.6;
(2)1375+450÷15×25
=×,
=1375+30×25,
=1375﹣750,
=
=625; 15.(1)43×8﹣420÷15,
(3)[4.5+(13×+13×)]÷
=344﹣28,
=316;
小升初真题混合运算----
5
(2)+2++3,
=(+)+(3+2),
=1+6,
=7;
(3)×÷15,
=×,
=;
(4)(+)÷﹣,
=×﹣,
=﹣,
=;
(5)3.9×9.77+0.23×3.9
=3.9×(9.77+0.23),
=3.9×10,
=39;
(6)+(﹣)×,
=+×,
=+,
=.
16.(1)420÷216÷18×17,
=÷18×17,
=×17,
=;
(2)25×12.5×32,
=25×12.5×8×4,
=(25×4)×(12.5×8),
=100×100,
=10000;
(3)×+÷,
=×+×,
=(+)×,
=7.31.
④÷[×(﹣)],
=1×,
=÷[×],
=;
=×,
(4)40÷[×(+)],
=3
=40÷[×],
19.(1)360﹣225÷15×18,
=40÷,
=360﹣15×18,
=360﹣270,
=80
=90;
17.(1)(315+285)÷(315﹣255),
(2)÷×,
=600÷60,
=10;
=×,
(2)5﹣(÷+), =;
=5﹣(4),
(3)4.72﹣1.16﹣2.84,
=4.72﹣(1.16+2.84),
=5﹣4﹣,
=4.72﹣4,
=0.72;
=; (4)+÷+,
(3)(+﹣)×36, =++,
=×36+×36﹣×36, =++,
=9+6﹣12,
=3;
=1+,
(4)3.3×+0.75×3.7+75%×3, =1.
=(3.3+3.7+3)×0.75, 20.860﹣560÷8×7
=10×0.75, =860﹣70×7,
=7.5 =860﹣490,
=370;
18.①405×(20﹣172÷43), (5.9+1.65)÷2.5
=405×16, =7.55÷2.5,
=6480; =3.02
②×+×,
(+)×20÷
=×(+), =(×20+×20),
=; =(15+16)×,
③17.31﹣6.15﹣3.85,
=17.31﹣(6.15+3.85),
=31×,
=17.31﹣10, =21;
小升初真题混合运算----
6
÷[(+)×].
=÷[×],
=,
=.
21.(1)360+24÷15×30,
=360+×30,
=360+48,
=408;
(2)0.25×7.2+2.8÷0.5,
=1.8+5.6,
=7.4;
(3)×29﹣8×,
=×(29﹣8),
=×21,
=9;
(4)(+﹣)÷,
=(+﹣)×24,
=×24+×24﹣×24,
=20+21﹣10,
=41﹣10,
=31
22.(1)109×x+109×x,
=(109+109)×x,
=218x;
(2)9.5﹣(4.6+5.8)÷1.3,
=9.5﹣10.4÷1.3,
=9.5﹣0.8,
=8.7;
(3),
=÷+,
=+,
=.
23.(1)3600﹣800÷40×35,
=3600﹣20×35,
=12÷[×],
=3600﹣700,
=2900;
=12÷,
(2)64﹣15.8﹣14.2, =48.
=64﹣(15.8+14.2), 25.(1)53×13+21,
=64﹣30,
=689+21,
=34; =710;
(3),
(2)1.65×45+55×1.65,
=1.65×(45+55),
=(40﹣27)×,
=1.65×100,
=165;
=13×,
(3)÷[1﹣(+)],
=9;
=÷[1﹣],
(4),
=,
=×36﹣×36+×36,
=15﹣6+14,
=.
=9+14,
26.(1)25×12﹣850÷17,
=23; =300﹣50,
(5),
=250;
(2)0.25×99+25%,
=(18﹣5+1)×,
=0.25×(99+1),
=0.25×100,
=14×,
=25;
=9;
(3)6÷7﹣,
(6)38÷[2.5×(4.36+3.64)],
=38÷[2.5×8],
=﹣,
=38÷20,
=1.9
=;
24.(1)6760÷13+17×21,
=520+357,
(4)()×13+4÷17,
=877;
(2)3.33×4.5+4.5×6.67
=×13+×13+4÷17,
=(3.33+6.67)×4.5,
=10×4.5,
=++,
=45;
=+(+),
(3)(+)÷(﹣)
=+1,
=,
=2.
=;
27.(1)2842÷14+74×3
(4)
=2848÷7÷2+74×3,
=203+222,
=425;
小升初真题混合运算----
7
(2)÷( ﹣)
=×12,
=10;
(3)3.6×99+3.6
=(99+1)×3.6,
=100×3.6,
=360;
(4)÷( ×)
=×,
=;
(5)×+÷
=×+×,
=(+)×,
=1×,
=;
(6)72×(﹣)
=72×﹣72×,
=40﹣30,
=10
28.(1)(384+336)÷15×13,
=720÷15×13,
=48×13,
=624;
(2)(11+30.6)÷16+16.5,
=41.6÷16+16.5,
=2.6+16.5,
=19.1;
(3)2﹣×﹣,
=2﹣﹣,
=2﹣(+),
=2﹣1,
=2;
=2008×7.3﹣6.3×2008,
(4)[1﹣(+)]÷,
=(7.3﹣6.3)×2008,
=[1﹣]÷,
=1×2008,
=2008;
=÷,
(4)118÷(14+2.5×45),
=118÷(14+112.5),
=.
=118÷126.5,
29.(1)(73.6÷0.16+370)×18,
=;
=(460+370)×18,
(5)99﹣97+95﹣93+91﹣89+…+7
=830×18, ﹣5+3﹣1,
=14940; =2+2+…2+2,
(2)3.84÷+5.16×,
=2×25,
=50.
=3.84×+5.16×,
(6)2008÷
2=;
=(3.84+5.16)×,
31.(1),
=9×,
=12;
=﹣+,
(3), =(+),
=7.35﹣﹣0.35﹣, =1﹣,
=(7.35﹣0.35)﹣(+), =;
=7﹣, (2)75﹣25×,
=6; =75×﹣25×,
(4)2.5×(+++), =(75﹣25)×,
=2.5×(×4), =50×,
=(2.5×4)×,
=30;
(3),
=10×,
=×14+×14﹣,
=.
30.(1)3618÷45+1620,
=5+(14﹣1)×,
=80.4+1620,
=1700.4;
=5+13×,
(2)67﹣67×(23+19), =5+4,
=67×(1﹣23﹣19), =9;
=67×(﹣41),
=﹣2747;
(4),
(3)200.8×73﹣6.3×2008,
小升初真题混合运算----
8
=÷+,
=+,
=