2021-2022学年鲁教版六年级数学上册《2.11有理数的混合运算》计算题专题训练(附答案)
1.计算:.
2.计算:﹣12022.
3.计算:.
4.计算:
(1)(﹣4)﹣(﹣2)+(﹣9)+3.5;
(2)(﹣1)÷(0.75)×(﹣1)÷3×(﹣0.5)2;
(3)(﹣3)2﹣(1)3×﹣6÷;
(4)(﹣3+﹣)×(﹣62).
5.计算:32÷(﹣2)3﹣3×|﹣1|.
6.计算:(﹣﹣)÷(﹣)+(﹣).
7.计算:﹣24÷﹣(﹣2)×4+1÷×(﹣2).
8.计算:[()2﹣]÷1+(﹣)×150%.
9.计算:
(1)(﹣36)×();
(2)﹣23×(﹣4)2÷(﹣2)3﹣(﹣1)2021.
10.计算:
(1)(﹣1)3﹣×[2﹣(﹣3)2];
(2)(+﹣)×12+(﹣2)3÷(﹣4).
11.计算:
(1)×﹣÷;
(2)÷[(+)×].
12.计算:
(1)1×[3×(﹣)2﹣1]﹣÷(﹣2)3;
(2)9+5×(﹣3)﹣(﹣2)2÷4.
13.计算:
(1)﹣1﹣|﹣10|×﹣(﹣9)÷3;
(2)3÷(﹣)﹣(﹣2)3×(﹣).
14.计算:.
15.计算:.
16.计算:
(1)2×(﹣3)3﹣4×(﹣3);
(2)﹣22÷(﹣)×(﹣).
17.计算:
(1)﹣10+8÷(﹣2)2;
(2)(12﹣1﹣0.4)×(﹣).
18.计算:
(1);
(2).
19.计算:
(1)﹣33+|﹣12|+3×(﹣2);
(2)(﹣+)×(﹣24).
20.计算:
(1)(﹣11)+8+(﹣14);
(2).
21.计算:
(1)14﹣25+13;
(2)﹣14﹣|2﹣3|+(﹣)2×.
22.计算:
(1)12﹣(﹣6)+(﹣9);
(2)(﹣+﹣)÷(﹣);
(3)﹣12021﹣÷(﹣3×)+|﹣2|.
23.计算题:
(1)(﹣4)﹣(﹣1)+(﹣6)÷2;
(2)﹣14﹣0.5÷×[1+(﹣2)2].
24.计算:
(1)﹣24×(﹣﹣);
(2)﹣14+|﹣4|﹣8÷(﹣2)2.
25.计算:
(1)﹣(﹣1)2022﹣2.45×8+2.55×(﹣8).
(2)﹣22﹣5×+|﹣3|﹣25×0.
26.计算题
(1)(﹣5)﹣(﹣10)+(﹣32)﹣(﹣7);
(2)﹣110+|2﹣(﹣3)2|+÷(﹣).
27.计算:
(1)﹣8+4﹣(﹣2)﹣3;
(2)﹣14+(﹣5)×(﹣8)﹣(﹣2)3÷(﹣4).
28.计算:
(1)|3﹣8|﹣||+(﹣);
(2)(﹣1)2021+2×(﹣)2;
(3)1×(0.5﹣)÷1;
(4)(﹣48)×[(﹣)].
29.计算:
(1)()×(﹣60);
(2)﹣16+2×(﹣3)2.
30.计算:
(1);
(2)()×.
31.计算:(1)6×()﹣;
(2)×(2÷﹣3);
(3)[1﹣()]÷;
(4)×÷(﹣);
(5)÷+×.
32.计算:
(1)3×(﹣4)+18÷(﹣6);
(2)﹣32×﹣(﹣4)÷|﹣2|3.
33.计算:
(1)﹣23﹣3×(﹣1)2021﹣9÷(﹣3);
(2).
34.计算:
(1)﹣12+[(﹣2)2﹣(﹣1)÷(﹣)];
(2)﹣12×(1﹣+).
35.计算:﹣22+3×(﹣1)2021﹣(﹣12)×().
参考答案
1.解:
=×﹣×+×
=(+)×
=()×
=(﹣1)×
=﹣.
2.解:﹣12022
=﹣1﹣(2﹣9)﹣×24﹣×24+×24
=﹣1+7﹣33﹣56+90
=7.
3.解:
=125÷+(﹣)×
=45﹣
=44.
4.解:(1)(﹣4)﹣(﹣2)+(﹣9)+3.5
=(﹣4)+2+(﹣9)+3.5
=[(﹣4)+(﹣9)]+(2+3.5)
=(﹣14)+6
=﹣8;
(2)(﹣1)÷(0.75)×(﹣1)÷3×(﹣0.5)2
=(﹣1)××(﹣)××
=1××××
=;
(3)(﹣3)2﹣(1)3×﹣6÷
=9﹣×﹣6×
=9﹣﹣9
=﹣;
(4)(﹣3+﹣)×(﹣62)
=(﹣3+﹣)×(﹣36)
=×(﹣36)﹣3×(﹣36)+×(﹣36)﹣×(﹣36)
=(﹣18)+108+(﹣30)+21
=81.
5.解:原式=32÷(﹣2)3﹣3×
=9÷(﹣8)﹣3×
=﹣2
=﹣3.
6.解:(﹣﹣)÷(﹣)+(﹣)
=﹣÷(﹣)+(﹣)
=+(﹣)
=﹣1.
7.解:﹣24÷﹣(﹣2)×4+1÷×(﹣2)
=﹣16÷+8+2×(﹣2)
=﹣+8﹣4
=﹣.
8.解:[()2﹣]÷1+(﹣)×150%
=(﹣)÷1﹣1
=﹣÷1﹣1
=﹣﹣1
=﹣1.
9.解:(1)(﹣36)×()
=﹣36×+36×+36×
=﹣27+28+15
=16;
(2)﹣23×(﹣4)2÷(﹣2)3﹣(﹣1)2021
=﹣8×16÷(﹣8)+1
=16+1
=17.
10.解:(1)原式=
=
=
=;
(2)原式=
=3+2﹣6+2
=1.
11.解:(1)×﹣÷
=﹣
=﹣
=
=;
(2)÷[(+)×]
=÷()
=÷
=×15
=3.
12.解:(1)1×[3×(﹣)2﹣1]﹣÷(﹣2)3
=×(3×﹣1)﹣÷(﹣8)
=×(﹣1)+
=×+
=+
=;
(2)9+5×(﹣3)﹣(﹣2)2÷4
=9﹣15﹣4÷4
=9﹣15﹣1
=﹣7.
13.解:(1)﹣1﹣|﹣10|×﹣(﹣9)÷3
=﹣1﹣10×+3
=﹣1﹣5+3
=﹣3;
(2)3÷(﹣)﹣(﹣2)3×(﹣)
=﹣4﹣(﹣8)×(﹣)
=﹣4﹣
=﹣5.
14.解:
=27×(﹣)﹣18×+9
=﹣45﹣4+9
=﹣40.
15.解:
=(﹣1)+12××(﹣4)﹣(﹣4)×(﹣)
=(﹣1)﹣64﹣5
=﹣70.
16.解:(1)原式=2×(﹣27)+12
=﹣54+12
=﹣42;
(2)原式=﹣4÷×(﹣)
=﹣24×(﹣)
=15.
17.解:(1)﹣10+8÷(﹣2)2
=﹣10+8÷4
=﹣10+2
=﹣8;
(2)(12﹣1﹣0.4)×(﹣)
=12×(﹣)﹣×(﹣)﹣0.4×(﹣)
=﹣9+1+0.3
=﹣7.7.
18.解:(1)原式=﹣72×+(﹣72)×(﹣)+(﹣72)×
=﹣12+54﹣30
=12;
(2)原式=﹣16÷4+×6
=﹣4+4
=0.
19.解:(1)﹣33+|﹣12|+3×(﹣2)
=﹣27+12﹣6
=﹣21;
(2)(﹣+)×(﹣24)
=×(﹣24)﹣×(﹣24)+×(﹣24)
=﹣8+18﹣10
=0.
20.解:(1)(﹣11)+8+(﹣14)
=﹣11+8﹣14
=﹣25+8
=﹣17;
(2)
=﹣81×××(﹣)
=1.
21.解:(1)14﹣25+13
=﹣11+13
=2;
(2)﹣14﹣|2﹣3|+(﹣)2×
=﹣1﹣1+×
=﹣1﹣1+6
=4.
22.解:(1)原式=12+6﹣9
=18﹣9
=9;
(2)原式=
=﹣×(﹣48)+×(﹣48)﹣×(﹣48)
=8﹣72+20
=﹣44;
(3)原式=
=
=.
23.解:(1)原式=﹣4+1﹣3=﹣6;
(2)原式=﹣1﹣0.5×4×(1+4)
=﹣1﹣2×5
=﹣1﹣10
=﹣11.
24.解:(1)﹣24×(﹣﹣)
=﹣24×+24×+24×
=﹣12+8+4
=0;
(2)﹣14+|﹣4|﹣8÷(﹣2)2
=﹣1+4﹣8÷4
=﹣1+4﹣2
=1.
25.解:(1)﹣(﹣1)2022﹣2.45×8+2.55×(﹣8)
=﹣1﹣(2.45+2.55)×8
=﹣1﹣5×8
=﹣1﹣40
=﹣41;
(2)﹣22﹣5×+|﹣3|﹣25×0
=﹣4﹣1+3﹣0
=﹣2.
26.解:(1)(﹣5)﹣(﹣10)+(﹣32)﹣(﹣7)
=﹣5+10﹣32+7
=5﹣32+7
=﹣20.
(2)﹣110+|2﹣(﹣3)2|+÷(﹣)
=﹣1+|2﹣9|﹣
=﹣1+7﹣
=5.
27.解:(1)﹣8+4﹣(﹣2)﹣3
=﹣4+2﹣3
=﹣5.
(2)﹣14+(﹣5)×(﹣8)﹣(﹣2)3÷(﹣4)
=﹣1+40﹣(﹣8)÷(﹣4)
=39﹣2
=37.
28.解:(1)原式=5﹣﹣
=5﹣1
=4;
(2)原式=﹣1+2××6
=﹣1+
=;
(3)原式=×(﹣)×=﹣;
(4)原式=(﹣48)×(﹣)﹣(﹣48)×+(﹣48)×
=24+30﹣28
=26.
29.解:(1)原式=×(﹣60)﹣×(﹣60)﹣×(﹣60)
=﹣30+40+50
=60;
(2)原式=﹣1+2×9﹣5×2×2
=﹣1+18﹣20
=﹣3.
30.解:(1)原式=+×4
=+2
=2;
(2)原式=(﹣)××
=××
=.
31.解:(1)原式=6×+6×﹣
=+﹣
=+﹣
=;
(2)原式=×(﹣)
=×
=;
(3)原式=(1﹣)×4
=×4
=;
(4)原式=÷(﹣)
=÷
=×
=;
(5)原式=×+×
=×(+)
=×1
=.
32.解:(1)3×(﹣4)+18÷(﹣6)
=(﹣12)+(﹣3)
=﹣15;
(2)﹣32×﹣(﹣4)÷|﹣2|3
=﹣9×+4÷8
=﹣+
=﹣1.
33.解:(1)﹣23﹣3×(﹣1)2021﹣9÷(﹣3)
=﹣8﹣3×(﹣1)+3
=﹣8+3+3
=﹣2;
(2)
=﹣1+×+(﹣6)×
=﹣1++(﹣)
=﹣1++(﹣)
=﹣.
34.解:(1)﹣12+[(﹣2)2﹣(﹣1)÷(﹣)]
=﹣1+[4﹣(﹣)×(﹣6)]
=﹣1+(4﹣2)
=﹣1+2
=1;
(2)﹣12×(1﹣+)
=﹣12×(﹣+)
=﹣12×﹣×(﹣12)+×(﹣12)
=﹣16+9+(﹣2)
=﹣9.
35.解:﹣22+3×(﹣1)2021﹣(﹣12)×()
=﹣4+3×(﹣1)+12×﹣12×
=﹣4+(﹣3)+4﹣9
=﹣12.