1樓:匿名使用者
(1)2.64×1.7-2.64×0.7
=2.64×(1.7-0.7)
=2.64×1
=2.64
(2)31.5×1.07-3.15×0.7=3.15×10.7-3.15×0.7
=3.15×(10.7-0.7)
=3.15×10
=31.5
(3)2.7×5.7-2.7+5.3×2.7=2.7×(5.7-1+5.3)
=2.7×10
=27(4)0.625÷0.125×0.8=(0.625×0.8)×8÷(0.128×8)=0.5×8÷1
=4(5)18.6×6.1+3.9×18.6=18.6×(6.1+3.9)
=18.6×10
=186
(6)1.3579+3.5791+5.7913+7.9135+9.1357
=(1+3+5+7+9)×1.1111
=25×1.1111
=27.7775
(7)52.5x2.9+5.45
=5.25x29+5.25+0.2
=5.25×(29+1)+0.2
=5.25×30+0.2
=157.5+0.3
=157.7
(8)0.92x15+0.08x15
=(0.92+0.08)×15
=1×15
=15(9)0.72×1.25×2.5
=0.9×(0.8×1.25)×2.5
=0.9×1×2.5
=2.25
(10)400.6x7-2003x0.4
=200.3x14-200.3x4
=200.3×(14-4)
=200.3×10
=2003
2樓:眼眸或徘徊至此
用分配法解125×8應該記住 是1000所以1.25×8=10原式=1.25×8+1.25×10
=10+12.5
=22.5
3樓:新野旁觀者
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/273. 12× 5/6 –
2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/97. 5/2 -( 3/2 + 4/5 )8. 7/8 + ( 1/8 + 1/9 )9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/514. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )16. 5/9 × 18 – 14 × 2/717.
4/5 × 25/16 + 2/3 × 3/418. 14 × 8/7 – 5/6 × 12/1519. 17/32 – 3/4 × 9/2420.
3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/623. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/225. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 1527. 7/19 + 12/19 × 5/628. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/230. 101 × 1/5 – 1/5 × 21
4樓:匿名使用者
起碼要把題目列出來啊。
5樓:匿名使用者
(1)2.64×1.7-2.64×0.7
=2.64×(1.7-0.7)
=2.64×1
=2.64
(2)31.5×1.07-3.15×0.7=3.15×10.7-3.15×0.7
=3.15×(10.7-0.7)
=3.15×10
=31.5
(3)2.7×5.7-2.7+5.3×2.7=2.7×(5.7-1+5.3)
=2.7×10
=27(4)0.625÷0.125×0.8=(0.625×0.8)×8÷(0.128×8)=0.5×8÷1
=4(5)18.6×6.1+3.9×18.6=18.6×(6.1+3.9)
=18.6×10
=186
(6)1.3579+3.5791+5.7913+7.9135+9.1357
=(1+3+5+7+9)×1.1111
=25×1.1111
=27.7775
(7)52.5x2.9+5.45
=5.25x29+5.25+0.2
=5.25×(29+1)+0.2
=5.25×30+0.2
=157.5+0.3
=157.7
6樓:紫笑
1.25x(8+10)=1.25x8+1.25x10=10+12.5=22.5
7樓:阿興賬號
22.5,不知道你想問什麼啊
8樓:最愛我是小允
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\pard\pardeftab720\partightenfactor0
\f0\b\fs36 \cf2 \expnd0\expndtw0\kerning0
\outl0\strokewidth0 \strokec2 \}
9樓:匿名使用者
《精》原式=1.25×8+1.25×10
=10+12.5
《銳》 =22.5
10樓:花花的實施
1.8×
3.6+1.2×3.6
=3.6×(1.8+1.2)
=3.6×3
=10.8
這樣的嗎?是的話我再找
0.4×125×25×0.8
=(0.4×25)×(125×0.8)
=10×100=1000
1.25×(8+10)
=1.25×8+1.25×10
=10+12.5=22.5
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
1.24×8.3+8.3×1.76
=8.3×(1.24+1.76)
=8.3×3=24.9
9999×1001
=9999×(1000+1)
=9999×1000+9999×1
=10008999
14.8×6.3-6.3×6.5+8.3×3.7
=(14.8-6.5)×6.3+8.3×3.7
=8.3×6.3+8.3×3.7
8.3×(6.3+3.7)
=8.3×10
=831.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
933-157-43
=933-(157+43)
=933-200
=733
4821-998
=4821-1000+2
=3823
i32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
9048÷268
=(2600+2600+2600+1248)÷26
=2600÷26+2600÷26+2600÷26+1248÷269
=100+100+100+48
=348
2881÷ 43
=(1290+1591)÷ 434
=1290÷43+1591÷43
=30+37
3.2×42.3×3.75-12.5×0.423×16
=3.2×42.3×3.75-1.25×42.3×1.6
=42.3×(3.2×3.75-1.25×1.6)
=42.3×(4×0.8×3.75-1.25×4×0.4)
=42.3×(4×0.4×2×3.75-1.25×4×0.4)
=42.3×(4x0.4x7.5-1.25x4x0.4)
=42.3×[4×0.4×(7.5-1.25)]
=42.3×[4×0.4×6.25]
=42.3×(4×2.5)
=4237
1.8+18÷1.5-0.5×0.3
=1.8+12-0.15
=13.8-0.15
=13.65
6.5×8+3.5×8-47
=52+28-47
=80-47
(80-9.8)×5分之2-1.32
=70.2x2/5-1.32
=28.08-1.32
=26.76
8×7分之4÷[1÷(3.2-2.95)]
=8×4/7÷[1÷0.25]
=8×4/7÷4
=8/7
2700×(506-499)÷900
=2700×7÷900
=18900÷900
=2133.02-(148.4-90.85)÷2.5
=33.02-57.55÷2.5
=33.02-23.02
=10(1÷1-1)÷5.1
=(1-1)÷5.1
=0÷5.1
=018.1+(3-0.299÷0.23)×1
=18.1+1.7×1
=18.1+1.7
=19.8
(1)45.55-(6.82+15.
55) (2)34.52-17.87-12.
23 (3)6.43-(1.4-0.
57) (4)23.75-8.64-3.
46 (5)17.83-9.5-7.
83-0.5 (6)5.38+88.
2-2.38+1.8 (7)27.
38-5.34+2.62-4.
66 (8)21.63-(8.5+9.
63) (9)7.5-2.45+7.
5+2.45 (10)0.9+0.
99+0.999 (11)5.09-(0.
09+1.23) (12)9.36-(4.
36-3.5) (13)609-708+306-108+202-198+497-100 (14)14+15+16+……+45+46 (15)9999+9998+9997+9996 (16)99999×26+33333×22 (17)19175÷59+678 (18)36.5×1.
4-8.51 (19)1.3-3.
79+9.7-6.21 (20)8×0.
4×12.5×2.5 小學六年級全科目課件教案習題彙總語文數學英語 (21)125×(8+0.
8+0.08) (22)45 ÷〔78 -(25 +38 )〕 (23)1.7+150 +3.
98 (24)92.4-(4.4+58 ) (25)3.
35×6.47×2+6.7×3.
6 (26)18.7-3.375-6.
625 (27)2.5×4.4 (28)25×1.
25×32 (29)(3.75+4.1+2.
35)×9.8 (30)1.28+9.
8+7.72+10.2 (31)12 ×1120 +12 ×2049 (32)120-144÷18+35 (33)347+45×2-4160÷52 (34)(58+37)÷(64-9×5) (35)95÷(64-45) (36)85+14×(14+208÷26) (284+16)×(512-8208÷18) (38)120-36×4÷18+35 (58+37)÷(64-9×5) (40)(6.
8-6.8×0.55)÷8.
5 答案 (1)23.18 (2)4.42 (3)5.
6 (4)11.65 (5)0 (6)93 (7)20 (8)3.5 (9)15 (10)2.
889 (11)3.77 (12)8.5 (13)500 (14)1950 (15)39990 (16)3333300 (17)1003 (18)42.
59 (19)1 (20)100 (21)1110 (22)3 (23)155.68 (24)30 (25)67.469 (26)8.
7 (27)11 (28)1000 (29)99.96 (30)29 (31)38028 (32)147 (33)357 (34)5 (35)5 (36)393 (37)(37)16800 (38)77 (39)(39)5 (40)0.36
1)25%*132+1/4*8 2)32*0.125*25
=1/4*132+1/4*8 =(4+8)*0.125*25
=1/4*(132+8) =(4*25)*(8*0.125)
=1/4*140 =100*1
=35 =1000
3)75%*76+25*4+0.75*12
=3/4*76+3/4*12+25*4
=3/4*88+100
=166
4)3200*1/8÷2/5+1270 5)(2/3+4/5)*7/6
=400*5/2+1270 =22/15*7/6
=1000+1270 =77/45
=2270
5)6*(1/2+2/3) 6)132*(44÷176)
=6*1/2+6*2/3 =132*1/4 =33
=3+4
=7 1.45+15×6= 135
2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6.10+12÷3+20=34
7.(80÷20+80)÷4=21
8.70+(100-10×5)=120
9.360÷40+10= 19
10.40×20-200= 600
11.(80-25)*2= 110
12.70+45=115
13.90×2÷3= 60
14.16×6÷3= 32
15.300×6÷9= 200
16.540÷9×7=420
17.30×20÷15= 20
18.400÷4×7= 700
19.(350-80)÷9= 30
20.160+70+50=280
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16÷4= 100
30.120×25÷5= 600
31.36×11÷3= 132
32.1025÷25×8=328
33.336+70-6= 400
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50+10= 610
38.25×8+199= 399
39.23×11-13= 240
40.125÷25-5=0
41.4200-2200+200=2200
42.220+80-150=150
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
注:\代表分號,/代表除號,2\1表示二分之一,5+4\1=5 4\1表示5又4/1(帶分數)
5\6*5=6 5\4*2=5/8 2\1*4=2 4 4\5*2=2/5 3\1*5=3/5
7\2*6=7/12 5\2*6=5/12 3\5*2=3/10 5\7*2=5/14 5\6*1=5/6
7\9*2=7/18 5\4*2=5/8 2\45*0=0 5\6-5\4=5\2 2\1+2\1=1
4\5-4\5=0 3\2-3\1=3\1 5+4\1=5 4\1 5\1+5\1=5\2 7/7+7/7=2
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9
5/3*105=63 19/7*38=14 5/1*25=5 6/1*48=8 7/2*28=8 8/19*16=38
8/19*16=38 61/60*122=120 7/2*28=8 8/19*16=38 1/1*2=2
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18 2/7*2=2/14
5\4/2=5\2 5\6/2=5\3 3\2/1=3\2 5*5\1=1 5\9/3=5\3
7/1*8=56 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 5/1*25=5
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19*16=38
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 2\1*2=1
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
夠了吧、、、、
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