有理数口算题卡集合文档格式.docx
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2-8=
-3-6=
(-10)+6=
(+12)+(-4)=
(-5)+(-7)=
(+6)+(-9)=
(-0.9)+(-2.7)=
(-8)-8=
8-(-8)=
8-8=
0-6=
0-(-6)=
16-47=
28-(-14)=
(-3.8)-(+7)=
(1)(―3)+(-7)=
(2)(+12)+(-29)=
(3)
=(4)(-3.6)+(-2.5)=
(5)(+2)-(+9)=(6)(-3.8)-(+4.7)=
(7)
=(8)
=
(9)-3×
(+2)=(10)(-5)×
(-2)=
(11)
=(12)
(13)
(14)-0.125×
8=
(15)(-3)×
(+12)=(16)(-1.5)×
(-4)=
(17)(-0.01)×
(-264)=
(18)
(19)
=(20)-(+2)2=
(21)
=(22)
=
(23)-(-2)2=(24)(-3)3=
(25)-33=(26)-(-2)3=
(27)(-2)2×
(-2)3=(28)(-2)5=
(29)()2=16, (30)()2=9;
(31)()3=-8, (32)( )3=27
(33)-60÷
(-5)=;
(34)(-90)÷
3=
(35)4÷
(-12)=;
(36)-48÷
(-6)=
(37)化简
(38)1的倒数为
(39)-1的倒数为
(40)的倒数等于它本身
(41)(-3)2=;
(42)-32=;
(43)(-2)4=;
(44)-24=;
(45)(-1)3=;
(46)-13=。
(47)如果n为正整数,(-1)2n=,
(48)(-1)2n-1=
(49)-(-2)3=;
(50)-(-2)2=
(51)(-4.6)+(8.4)=_______
(52)3.6-(-6.4)=__________
(53)(-5.93)-|-5.93|=__________
(54)
(55)(56)
__________
(57)(-12)+(+5)=(58)(-32)+(-24)=
(59)的相反数是4,(60)0的相反数是,
(61)-(-4)的相反数是(62)绝对值最小的数是
(63)-3
的绝对值是(64)绝对值是5的数是__________
(65)
=(66)-2-3
=
(67)-
=(68)
=
(69)-
=(70)
(71)8+(-
)=
(72)-5-(-0.25)=
(73)2
×
=(74)-9+19=
(75)-13-(1+0.5)=(76)
÷
(-4)=
(77)(-1)÷
(-1
)=(78)(―4)+(+5)=
(79)+(―10)+(+4)=(80)(+4.7)―(―8.9)=
(81)-(+7.5)+(―6)=(82)
(83)
的相反数的绝对值是.
(84)如果a,b互为相反数,a+b=.
(85)绝对值在2与5之间的整数有
比较下列各数的大小(填“>
”、“<
”或“=”)
(86)
____0
(87)
_____
(88)
0
(89)有理数中绝对值最小的数是______________
(90)一个数的绝对值是它本身,则这个数必为_____________
(91)(-8)×
(-2)×
(-25)=
(92)
(93)(-2)×
(-12)=(94)-12×
(-3)=
(95)
=(96)-52×
(-5)2=
(97)(-2)2-(-3)2=(98)(-1)3-81÷
(-9)=
(99)(-1)101+(-1)102+(-1)103=
(100)(-1)1·
(-1)2·
(-1)3·
(-1)4=
(1)(―3)+(-7)=
(2)(+12)+(-29)=
=(4)(-3.6)+(-2.5)=
(5)(+2)-(+9)=(6)(-3.8)-(+4.7)=
=(8)
(-264)=(18)
(19)
(21)
(23)-(-2)2=(24)(-3)3=
3=
(35)4÷
(36)-48÷
(-6)=
(38)1的倒数为
(39)-1的倒数为(40)的倒数等于它本身
(43)(-2)4=;
(45)(-1)3=;
(47)如果n为正整数,(-1)2n=,(48)(-1)2n-1=
(50)-(-2)2=
(53)(-5.93)-|-5.93|=__________
(54)
__________
(57)(-12)+(+5)=
(58)(-32)+(-24)=
(59)的相反数是4,
(60)0的相反数是,
(61)-(-4)的相反数是(62)绝对值最小的数是
(79)+(―10)+(+4)=(80)(+4.7)―(―8.9)=
的相反数的绝对值是.
(84)如果a,b互为相反数,那么a+b=.
(85)绝对值在2与5之间的整数有
____0(87)
(89)有理数中最小的正整数是______________
(95)
(97)(-2)2-(-3)2=
(98)(-1)3-81÷
(99)(-1)101+(-1)102+(-1)103=(100)(-1)1·
(101)最小的自然数______,最大的负整数_______,最小的正整数______,绝对值最小的数_______
(102)相反数等于本身的数__________,绝对值等于本身的数________,倒数等于本身的数__________,平方等于本身的数__________,立方等于本身的数__________.
(103)用科学计数法表示
650000000000=________________
—328000000=________________
843亿=_______________
105万=________________
(104)写出下列数的原数
8.31×
105=______________
﹣3.04×
107=________________
6.7亿=______________
﹣5.47万=________________
(105)下列由四舍五入得到的近似数,各精确到哪一位?
130.56____________________837__________________
8.24亿________________________
4.371亿________________________________
(106)按要求四舍五入取近似值
105.8亿(精确到亿位)=____________________
0.0000895(精确到百万分位)=_________________
—678900(精确到万位)=_________________
18750(精确到百位)=_________________
9.37×
106=_______
P
山有木兮木有枝,心悦君兮君不知。
____佚名《越人歌》