2012新版初一数学上册有理数的乘除法一百道题(含答案)

逍遥右脑  2014-05-30 11:33



七年级数学第二次百题竞赛
每小题2分,满分200分 姓名 得分
1. (1) (2) (3) (?7.6)×0.5 (4)
=?6 =14 =?3.8 =

(5) (6) (7) (8)
=24 =?72 =24 =12

(9) (10) (11) (?90.25)÷9.5
=3 =5 =?7


(12) (13) 4÷(?2) (14) 0÷(?1000) (15) ? ×(?1 )÷(?2 )
=? =?2 =0 =?0.5
(16) (17) ×(-9) (18) (?6) ×(?5) ×(?4) ×(?3) (19) (?9.3)×4.4
=3 =54 =360 =?40.92

(20) ×6÷(?7) (21) (22)
=?7 =22 =2

(23) (24)
=?48 =
(25) (26) (+48)÷(+6)
= =8
(27) (?1155)÷[(?11)×(+3)×(?5)] (28) 375÷
=?7 =375
(29) (30)(?6)×5× (31)
=? =10 =?249

(32)(?4)×7×(?1)×(?0.25) (33) (34)
=?7 = =
(35) (36) (37) ?1 × 学
=-?60 =0 =?
(38) (39) (40)
=? =5 =?

(41) [ # (42)(+3 )×(3 ?7 )× ×
=?13.34 =?4


(43) 0×(?1)×(?2)×(?3)×(?4) (44) ( ? + )×(? 63)
=0 =?35


(45) (46)(?72)×(+1 ) (47)
=100 =?96 =?

(48)( + ? )×(?48) (49)
=?16 =?2000

(50)
=?

2.(1) (?4) × (?7) (2)6 ×(?8) (3) (4)(?25)× 16
=28 =?48 = =?400
(5) 3 ×(?5)×(?7)× 4 (6)15 ×(?17)×(?19) (7)
=420 =4845 =-2
(8) (9) (10)
=? =?18 =0

(11) (12) (13)
=?99 =? =?10

(14) (15)(-6)×5×
=? =10

(16) (?5)×(?3)+( ?7)×(?3)+12×(?3) (17)[(?2)?(?5)]÷[(?2)?(?5)]
=0 =1

(18) (19) (20)
=2 =?0.09 =1

(21) (22) (23) ;
= =? =8
(24) (25) (26) -200÷(-8)
=?1 =1 =25

(27)-0.25÷ (28)  (29)23÷ ×4 (30)-4÷(-9)÷3 
=? = =184 =

(31)30÷( ) (32) (33) (34)(+5)÷(- )
=36 =?13 =? =?10

(35)(-2 )÷(-10)×(-3 )÷(-5) (36)
= =?

(37) ( ) (38)(?27)÷9 (39)?0.125÷
=?14 =?3 =

(40)3.75?(+4)+( ?5.5)+( ?6) (41)7×(1?4×3)×(?2) (42)?36÷(?6) ?72÷(?8)
=?11.75 =154 =15

(43)?32÷(?2)+(?2)×(?8)?2 (44)(?3)?[?5+(?1×0.6)÷3]
=30 =2.2

(45)(?3)×(?7)?(? )÷(? ) (46)?8?[?7+(1? ×0.6)÷(?3)]
=20 =?

(47)?1?0.5?1÷0.25×[?2?(?3) ] (48)
=?3 =?240

(49)- ÷(-2 )- ×(-1 )-0.75
=

(50)(-2 )÷(-10)×(-3 )÷(-5)
=




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