七年級(jí)數(shù)學(xué)第二次百題競(jìng)賽每小題2分,滿分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 × 學(xué) =-?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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