苏科版七年级上册第2章有理数——有理数的计算题同步练习(含答案)

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名称 苏科版七年级上册第2章有理数——有理数的计算题同步练习(含答案)
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科目 数学
更新时间 2021-09-12 11:29:01

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有理数的计算题练习
一、填空
(1)
1-2=

(2)
(-52)+(-7)


(3)
4.5+(-4.5)


(4)
(-11)+(-14)


(5)
(-3)+3=

(6)
│-36│-│-24│=

(7)
(-3)


(8)
-3=

(9)
(-6)-6


(10)
-15+0=

(11)
37-(-13)=

(12)
0-2=______;
(13)

eq
\f(3,2)=

(14)
(-)=

(15)
(+5)+(+7)=_______;
(16)
(-3)+(-8)=________;
(17)
(-3)+(-15)=________;
(18)
(-22)+0=

(19)
(-)+


(20)



(21)
(+15)-(
)=-100;
(22)
(-4)+(+3)=

(23)
(+4.85)+(-3.25)=
;(24)
(-3.125)+(+3)=

(25)
(+1)-(__
_)=-2
(26)
(-3)-(-5)=______;
(27)
│-0.75│÷│-│


(28)
(+4)×(-5)=

(29)
(-)+(-)=

(30)
(-0.125)×(-8)=

(31)
-80+29=

(32)
0÷(-5)×100


(33)
(-0.91)÷(-0.13)=

(34)
(-)-(-)=

(35)
(-13)+25


(36)
-15-(
)=-100

(37)-(-18)+12-15+(-17)=

(38)
│-18│+│-6│=

(39)
(-2)
÷(-)++(-)


(40)
-21-12+33+12-67=

(41)
(-23)-(-18)-1+(-15)+23=

(42)
(-56)-48-(-48)-(-56)


(43)
-24+(-40)-28-(-19)-(-32)


(44)
--+-


(45)
-+(-)-(-)-


(46)
(-)-(-0.2)+1=

(47)
-24×(-+-)=

(48)
++(-)×


(49)
(+-)×(-36)


(50)
-7.5+4.7-(-8.9)+(-6)


(51)
(-6)÷2×(-)=

(52)(3-9)-(4-8)=

(53)
︱-45︱-(-71)
+︱-5︱+(-9)=

(54)
-26+43-24+13=

(55)
(-13)×(-15)×0×(-901)


(56)
3×5-(-5)×5+(-1)×5=

(57)
0.35+(-0.6)+0.25+(-5.4)


(58)
(-5)÷(-)×5=

(59)
0.1×(-0.001)×(-10)


(60)
(
)
=16.
二、计算(写出必要的解答过程)
(61)18-6÷(-3)×(-2)

(62)
100÷×(-8)

(63)
1÷(-)×;
(64)
2÷(-2)+0÷7-(-8)×(-2)

(65)0.7×-6.6×-1.1×+0.7×

(66)
78×(-)+(-11)×(-)+(+34)×

(67)
-+(-+)×(-2.4)

(68)(-+)÷(-)

(69)
-0.85×-18×+(18÷-×0.85);
(70)
(-)+(-)++(-);
(71)
(-1)×(-1)×(-1)×……×(-1)

(72)
3+2.25-8-12;
(73)(-0.25)+(-3)-︱-1︱-(-3)

(74)
0.5+(-15)-(-17)-︱-12︱;
(75)
(--)×(-)

(76)
(-5)×(-)+13×(-)-3×(-);
(77)
39×(-12)

(78)
(-)×(-1-6+0.6)

(79)
|1-|+|-|+|-|+…+|-|;
三、计算:
(1)÷;
(2);
(3)+÷;
(4)×[
].
(5);
(6)÷-÷;
(7)÷;
(8)÷-.
2、计算:
(1)×;
(2)12.7÷;
(3);
(4)×;
(5)÷;
(6)÷;
÷;
(8)×[
];
(9)[
]÷;
(10)÷.
3、计算:
(1)11+(-22)-3×(-11);
(2);
(3);
(4)÷[
];
(5)÷;
(6);
(7)-+2×+(-6)÷;
(8).
4、计算:
(1)÷;
(2)-;
(3);
(4);
(5);
(6)-10+8÷-4×3;
--;
(8)-(1-0.5)×;
5、计算:
(1)(-8)×5-40;
(2)(-1.2)÷(-)-(-2);
(3)-20÷5×+5×(-3)÷15;
(4)-3[-5+(1-0.2÷)÷(-2)];
(5)-23÷1×(-1)2÷(1)2;
(6)-+()×(-2.4)
参考答案
一、填空(每题1分,共计60分)
(1)-1;
(2)-59;
(3)
0;
(4)
-25;
(5)
0;
(6)
12;
(7)
9;
(8)-9;
(9)-12;
(10)
-15;
(11)
50;
(12)
-2;
(13)
-;
(14)

(15)
12;
(16)-11;
(17)-18;
(18)
-22;
(19)-;
(20)-;
(21)
115;
(22)
-;
(23)
1.6;
(24)
0;
(25)
3;
(26)
2;
(27)

(28)
-20;
(29)
-1;
(30)
1;
(31)-51;
(32)
0;
(33)
7;
(34)
-;
(35)
12;
(36)
85;
(37)-2;
(38)
24;
(39)

(40)
-55;
(41)
2;
(42)
0;
(43)
-41;
(44)
-;
(45)-;
(46)
0;
(47)
2;
(48)

(49)
-27;
(50)
0.1;
(51)

(52)-2;
(53)
112;
(54)
6;
(55)
0;
(56)
35;
(57)
-5.4;
(58)
125;
(59)
0.001;
(60)±4
二、计算
(61)
14;
(62)-6400;
(63)-;
(64)-17;
(65)-2.6;
(66)
-22;
(67)-

(68)
-5;
(69)
17.15;
(70)
0;
(71)
-;
(72)
-14;
(73)
-2;
(74)
-9.5;
(75)-;
(76)
-11;
(77)
-474;
(78)5.5;
(79)

三、计算
1、(1)17;
(2);
(3)31;
(4)-11
(5)-10;
(6)22;
(7)-16;
(8)-
2、(1)1;(2)0;(3)42;(4);(5)18;
(6)0;
(7)-4.64;(8);(9)8;(10)-.
3、(1)22;
(2)0;
(3)-17;
(4)-;
(5);
(6)-95;
(7)-85;
(8)6
.
4、(1)3;
(2)1;
(3)-54;
(4)0;
(5);
(6)-20;
(7)-2;
(8)-.
5、(1)-80;
(2)5.6;
(3)-2;
(4)16;
(5)-;
(6)-2.9
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