1、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)
2、 (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=
3、 (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)=
4、
(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-
5、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
6、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× =
7、 (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,那么a+b= .
8、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=
2