分数乘除法简便运算100题(有答案)
分数乘除法简便运算100题(有答案)
(1)( +427 )×3 ×9 (2)(38 - 38 )× 6 15
(3) 16 ×(7 - 23 ) (4) 56 ×59 + 59 × 1 6
(5)29 ×34 +527 × 34 (6) 613 ×75 - 613 × 2 5 (7)
712 ×6 - 512 × 6 (8)38 +38 ×47 +38 ×3 7
(9) 37× 335 (10) 6 25
× 24 (11)
1521 ×34 + 1021 ×34 - 34 (12)710 ×101- 710 (13) × — × (14) 35 × 99 + 3 5
(15) ( 47 + )×7 ×9 (16)34 5 ×25 (17) 36×
3435 (18) ( 56 - 59 )×18 5
(19)2623 × 15 (20)3225 ×5 6 (21) +÷5121101 (22) 5
7535÷??? ??
+ (23)8 77 48 77 3 ÷
+÷ (24)9 192919 7÷
-÷ (25) ??
+?652053
(26)1259412595÷+÷
(27)38 - 38 ×47 - 38 ×37 (28)6237 63? (29) 31 ÷ 7 6+ 3 2÷ 7 6 (30) 229 ×(15×29 31
) (31) 58 ×23 ×815 (32)253 4 ×4
(33)54×( - 56
) (34) 7212451871211 ÷??? ??++ (35) 38311 62 375.011 58 3 ÷ -?+? (36)19 25 21425 197 5 + +
(37) 481836
5÷??? ??+ (38) 241241343651211÷
-+- (39) 115 925 119 7 + ÷ (40) 341574 35783
4265÷ +? +÷ (41) 8 83
883?÷? (42) ??? ??++÷??? ? ++121917112595 75 (43) 6 .03 524445 33 533-÷ +?+ ÷
(44)6.8×51+5 1
×3.2 (45) 101×254 (46) 8 5+ 8
5×15 (47)8 15 8÷8 (48) 3 1×7 6+3 2×7
6 (49)( 90+ 88 1)× 1 (50)5 7 ×3 8 +5 8 ×57 (51) 8 15 × 516 + 527 ÷109
(52)18×(49 +5 6 ) (53)23 ×7+2 3
×5 (54)(1 6 - 112
)×(24-4 5 ) (55)(5 7 ×4 7 +4 7 )÷4 7 (56)1 5 ÷[(23 +1 5 )× 113 ]
(57) 833×117+114×833 (58)3 1 333×3 (59) 5 912 512 79 5÷ + (60)
6 55 24 53 2- +
(61) (32×4 1+17)÷ 12 5
(62)(25+4 3)÷4 1+ 4 1 (63) 25 18× 16 9 + 25 7 ×169 + 169 () )73214
95(63-+? (65) 2316
]43)3121(85[÷
+- (66)(21×73+74×21)×4 1 (67)(99+ 10 9)÷9 (68) 15 14÷[(5 4+ 3 2)× 11
10] (69)(6 5+ 5 4)×30 (70)65 ×5
6-109÷59 (71) 81×58+81 ×41+81 (72) 54
×74×45-21 (73) 54×65+52÷53 (74) 5 4÷[( 8 5- 2 1)÷ 8 5]
(75) 3 5
×153 – 0.6×53
(76)(45 +14 )÷73 +710 (77)18 ×[12 ÷(35 ×10 9 )]
(78) (215 +311 )×15×11 (79)39 14 37? (80) 46× 45 44
(81) 2008×2006 2007
(82) 47 ×1522 ×712 (83) 910 ×1317 +910 × 4 17
(84)36×937 (85)1113 -1113 ×13 33 (86) 25 7×101- 25 7 (87) 9 57 39 57 4? +
(88) 59 × 34 +59 × 14 ()17× 9 16 (91)45
44×37 (92)2004×2003 67 (93)73 15 1×8 1 (94) 166 201÷41 (95)4 1 ×39 + 4 3×25 + 4 26× 13 3 (96)1 174 ×(2 3 2 - 4 3)+ 15 12 1 ÷ 21 17
(97)2000÷2000
2001 2000
(98)1994199219931 19941993?+-? (99)3 5 3×255 2 + 37.9×65 2 (100)(97 2+79 2)÷( 7 5+9 5)
分数乘除法简便运算100题答案
(1)( +427 )×3 ×9 =31 (2)(38 - 38 )× 6 15 =0
(3) 16 ×(7 - 23 )=18 19
(4) 56 ×59 + 59 × 16 = 59
(5)29 ×34 +527 × 34 =3611 (6) 613 ×75 - 613 × 25 = 6 13 (7)
712 ×6 - 512 × 6 =1 (8)38 +38 ×47 +38 ×37 = 4 3
(9) 37× 335 = 335 6
(10) 625 × 24 = 6
25 × (25-1)
=525 19 (12)
1521 ×34 + 1021 ×34 - 34 =71 (12)710 ×101- 7 10
=70 (14) × — × =0 (14) 35 × 99 + 3 5 =60
(16)( 47 + )×7 ×9=92 (16)34 5 ×25=95 (17) 36×
3435 (18) ( 56 - 59 )×18 5
=1 =(35+1)×34 35 = 34 35 34
(19)2623 × 15 (20)3225 ×5 6
=(25+35)× 15 =(30+512 )×56 =53 1 =27 (21)
+÷5121101 = 7
1 (22) 5
7535÷??? ?? + =7 7 1 (23)8 77 48 77 3 ÷ +÷= 7
8 (24)9 192919 7
÷-÷=5 (25)
+?652053 =122 1 (26)12 59 412 59 5 ÷ + ÷ =
5 12
(27)38 - 38 ×47 - 38 ×37 =0 (28)623763? =376237 (29) 31 ÷ 7 6+ 3 2÷ 7 6= 6 7 (30)
229 ×(15×2931 ) =31 30
(32) 58 ×23 ×815 =92 (32)253 4 ×4= 103
(33)54×( - 5 6
)=3 (34)7212451871211 ÷??? ??++=109 (36) 3 8311 62 375.011 58 3 ÷
-?+? =0 (36)19 25 21425 197 5 + + =19 7 5
(38) 4818365÷??? ?
+ =58 (38) 241241343651211÷ -+- =7 (39) 115 9 25 119 7 + ÷ = 11 5 (40) 3 41574 35783 4265÷ +? +÷
=750 (42) 8 83883 ÷? = (42)
++÷??? ??++121917112595 75 =5 (43) 6 .03 524445 33 533-÷ +?+ ÷ =60
(45) 6.8×51+5 1
×3.2 =2 (45) 101×254 =16254 (46) 8 5+ 8
5×15 =10 (47)8 15 8÷8=1 15 1 (48) 3 1×7 6+3
2×7 6 = 7
6 (49)( 90+ 88 1)× 1 = 1 88 1 (50)5 7 ×3 8 +5 8 × 57 =5 7
(51)815 ×516 + 527 ÷ 109 =3 1
(52)18×(49 +5 6 )=23
(53)23 ×7+2 3
×5 =8 (54)(1 6 - 112
)×(24-45 )=1 15 14
(55)(57 ×47 +47 )÷ 47= 7 12 (56)1 5 ÷[(23 +1 5 )× 113 ]=3 (57) 8 33× 11 7+
11 4×8 33= 8 33 (58)3 1333 ×3 =1000 (59) 59 12 512 79 5÷ +
= 95 (60) 6 5 5245 32- +=1 (62) (32× 4 1+17)÷ 12 5=60 (62)(25+ 4 3)÷ 4 1+
41 =1034 1
(63) 25 18× 169 + 25 7×16 9+ 16 9= () )7321 495( 63- +
=20 (65) 2316]4 3)3 1 2 1 (8 5 [÷ +-=0
(67)(21×7 3+ 7
4×21)×4 1 = 4
21 (67)(99+ 10
9)÷9 =119 1 (69) 15 14÷[( 5 4+ 3 2)× 11 10] = 10 7 (69)( 6 5+ 5
4)×30 =49 (70)65 ×5
6-109÷59 =21 (71) 81×58+81 ×41+ 81=12.5 (73) 54
×74×45-21=141 (73) 54×65+52÷5
3 =34 (74) 5 4÷[( 8 5- 2 1)÷
85】= 4 (75) 3 5
×153 – 0.6×53=60
(76)(45 +14 )÷73 +710 =2023 (77)18 ×[12 ÷(35 ×109 )] =323
(78) (
215 +311 )×15×11 =67 (79)39 1437?=33931 (80) 46× 45 44 =44
4544 (81) 2008×20062007 =200620072006 (82) 47 ×1522 ×712 =225
(83) 910 ×1317 +910 × 417 =910 (84)36×937 = 37 28
(85)1113 -1113 ×1333 =3320 (86) 25 7×101- 25
7 =28 (87) 9 57 39 57 4? + = 9 5
(88) 59 × 34 +59 × 14 =59 ()17× 916 = 9169 (91) 45
44×37 (92)2004×2003 67 =(1-45
1)×37 = (2003+1)×2003 67 = 1×37 - 45 1×37 = 2003× 2003 67 + 1×2003 67 = 36 458 =672003 67 (93)7315 1×81
= (72 + 15 16)×81
= 72 ×81 + 1516×81 = 915 2 (94) 166 20
1÷41 = (1 + 20 41)×411 = 1×41 1 + 20 41× 411 = 420 1 (95)41 ×39 + 4 3×25 + 4 26×13 3
= 43×13 + 4 3×25 + 4 3×13 26
= 43×(13 + 25 + 2)×40 = 30 (96)1
= 43 174 ×(2 32 - 43 )+ 15 12 1 ÷ 21 17
= 1721×11211 + 15121×1721 = 1721×(11211 + 15121) = 21 (97)2000÷2000 2001 2000 = 2000÷ 20012000
20012000+? = 2000 ÷ 2002 20002001 = 2002 2001 (98)1994 199219931 19941993?+-?
= 19941992199311994)11992(?+-?+ = 1994
19921993199319941992?++?
= 1
(99)353×2552 + 37.9×65 2
= 353×2552 + (255 2+12.5)×65 2 = 3 53 ×25 52 + 25 52×652 + 12.5×65 2
= (3.6+6.4)×25.4 + 12.5×8×0.8 = 254 + 80 = 334 (100)(972+792 )÷(75+95) = ( 7 65 + 9 65 )÷(75 +95 )
= [65×(71+91)]÷[5×(71+9 1 )]
= 65÷5 = 13