分数乘除法简便运算100题(有答案)(9页).doc
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分数乘除法简便运算100题(有答案)(9页).doc
-分数乘除法简便运算100题(有答案)-第 10 页分数乘除法简便运算100题(有答案)(1)(+)×3 ×9 (2)(- )× (3) ×(7 - ) (4) ×+ × (5)×+× (6) ×- × (7) ×6 - × 6 (8)+×+×(9) 37× (10) × 24 (11) ×+ ×- (12)×101- (13) ×× (14) × 99 + (15) ( + )×7 ×9 (16)3×25 (17) 36× (18) ( - )× (19)26× (20)32×(21) (22) (23) (24) (25) (26) (27)- ×- × (28) (29) ÷÷ (30)×(15×) (31) ×× (32)25×4(33)54×(- ) (34)(35) (36) (37) (38) (39) (40) (41) (42) (43) (44) 6.8××3.2 (45) 101× (46) ×15 (47)8÷8 (48) ×× (49)( 90)× (50)×+×(51)×+÷ (52)18×(+)(53)×7+×5 (54)()×(24)(55)(×+)÷ (56)÷(+)×(57) ×× (58)×3 (59) (60) (61) (32×17)÷ (62)(25)÷ (63) ××(64) (65) (66) (21××21)× (67)(99)÷9 (68) ÷()× (69)()×30 (70)×÷ (71) ×58×41(72) ×× (73) ×÷ (74) ÷()÷ (75) ×153 0.6×53(76)()÷ (77)×÷(×) (78) ()×15×11 (79)(80) 46× (81) 2008× (82) ×× (83) ×× (84)36× (85)× (86) ×101- (87) (88) × × (89)17× (91)×37 (92)2004×(93)73× (94) 166÷41 (95)×39 + ×25 + ×(96)1×(2 - )+ 15 ÷ (97)2000÷2000 (98) (99)3×25 + 37.9×6(100)(9+7)÷(+)分数乘除法简便运算100题答案(1)(+)×3 ×9 =31 (2)(- )× =0 (3) ×(7 - )= (4) ×+ × = (5)×+× = (6) ×- × = (7) ×6 - × 6 =1 (8)+×+×= (9) 37× = 3 (10) × 24 = × (25-1) =5(12) ×+ ×- = (12)×101- =70 (14) ××=0 (14) × 99 + =60 (16) ( + )×7 ×9=92 (16)3×25=95 (17) 36× (18) ( - )×=1 =(35+1)× = 34(19)26× (20)32× =(25+)× =(30+)× =5 =27(21) = (22) =7 (23)= (24)=5 (25) =12 (26)= (27)- ×- ×=0 (28) =37 (29) ÷÷= (30)×(15×) = (32) ××= (32)25×4= 103 (33)54×(- )=3 (34)=109(36) =0 (36) =19 (38) =58 (38) =7 (39) = (40) =750(42) =64 (42) =5 (43) =60(45) 6.8××3.2 =2 (45) 101× =16 (46) ×15 =10 (47)8÷8=1 (48) ×× = (49)( 90)× = 1 (50)×+×=(51)×+÷= (52)18×(+)=23(53)×7+×5 =8 (54)()×(24)=1(55)(×+)÷= (56)÷(+)×=3(57) ××= (58)×3 =1000(59) = (60) =1(62) (32×17)÷=60 (62)(25)÷=103 (63) ××=(64) =20 (65) =0(67) (21××21)× = (67)(99)÷9 =11 (69) ÷()× = (69)()×30 =49 (70)×÷ = (71) ×58×41=12.5(73) ××= (73) ×÷ = (74) ÷()÷】= 4 (75) ×153 0.6×53=60(76)()÷= (77)×÷(×) =(78) ()×15×11 =67 (79)=3(80) 46×=44 (81) 2008×=2006 (82) ××= (83) ×× =(84)36×= (85)×= (86) ×101- =28 (87) =(88) × × = (89)17× = 9 (91)×37 (92)2004×=(1-)×37 = (2003+1)×= 1×37 - ×37 = 2003× + 1×= 36 =67(93)73× = (72 + )× = 72 × + × = 9(94) 166÷41 = (164 + )× = 164× + × = 4(95)×39 + ×25 + ×= ×13 + ×25 + ×= ×(13 + 25 + 2)= ×40 = 30(96)1×(2 - )+ 15 ÷ = ×1 + 15×= ×(1 + 15)= 21(97)2000÷2000 = 2000÷ = 2000 ÷ (98) = 1(99)3×25 + 37.9×6 = 3×25 + (25+12.5)×6 = 3×25 + 25×6 + 12.5×6 = (3.6+6.4)×25.4 + 12.5×8×0.8 = 254 + 80 = 334(100)(9+7)÷(+)= 65×(+)÷5×(+)= 65÷5= 13