小学分数乘除法简便运算100题有答案.doc

-分數乘除法簡便運算100題（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 ×9 163×25 17 36× 18 ( - )×1926× 2032× 21 22 (23) 2425 26 27)- ×- ×28 29 ÷÷ 30×(15×)31×× 3225×43354×- )3435(36)37 (38) (39) (40) 41 (42) (43) 448××3.2 (45) 101×(46) ×15 (47)8÷8 (48) ××(49） 90× 50×+× 51×+÷5218×+ 53×7+×554×2455×+÷56÷+× 57××58×3 59 6061 (32×17)÷ 6225÷ 63 ××（64） 65 6621××21×6799÷9 68÷× (69)×30 70)×÷(71)×58×41 72××(80)46× (73)×÷ (74)÷÷ (75)×153 0.6×53(81)2008× (76)÷(77)×÷(×)(78) ()×15×11 (79) (82) ×× (83 ××8436× 85×86×101-87 88 ×× 8917×91×37 922004×(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÷+分數乘除法簡便運算100題答案1+×3 ×9 =31 2- ×=0 3 ×7 - = 4 ×+ × = 5×+×= 6 ×- ×= 7 ×6 - × 6 =1 8+×+×= 9 37×= 3 10 × 24 = × 25-1 =5（11） ×+ ×- = 12×101- =70 （14） ××=0 14× 99 + =60（15） ( + )×7 ×9=92 163×25=9517 36× 18 ( - )×=1 =35+1× =341926×2032× =25+× =30+× =5 =2721 = 22 =7 (23)= 24=5 25 =12 26= 27)- ×- ×=0 28 =3729 ÷÷= 30×(15×) =（31） ××= 3225×4= 103 3354×- )=3 34=109（35) =0 (36) =19 (37) =58 (38) =7 (39) = (40) =750(41) =64 (42) =5 (43) =60(44) 6.8××3.2 =2 (45) 101×=16 (46) ×15 =10 (47)8÷8=1(48) ×× = (49 90× = 150×+×=51×+÷= 5218×+=2353×7+×5 =854×24=155×+÷=56÷+×=357××= 58×3 =100059=60=1（61） (32×17)÷=60 6225÷=10363 ××=64=2065=0（66） 21××21×=6799÷9 =11(68) ÷× = (69)×30 =49 (70)×÷=(71)×58×41=12.5(72) ××= (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 ××=8436×= 85×=86×101- =28 87 =88 ××= 8917×= 991×37 922004×=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. z.