1樓:新野旁觀者
4/7+1/14-1/2
=8/14+1/14-7/14
=2/14
=1/7
5/3-3/8-5/8
=5/3-(3/8+5/8)
=5/3-1
=2/3
3/5+3/11+7/5+11
=(3/5+7/5)+11+3/11
=2+11+2/11
=13又2/11
3/4-{5/6-1/3}
=3/4-(5/6-2/6)
=3/4-1/2
=3/4-2/4
=1/4
2樓:
3/15加5/3減3/5
3樓:匿名使用者
1、1-1/3
2、7/8-1/8
3、1-3/6
4、1-1/4
5、9/25+7/25
6、25/36+11/36
7、29/33+13/66
8、5/9+7/18
9、9/10+13/25
10、7/15+7/20
11、5/9+2/7
12、5/9-7/18
13、6/5/2。4
14、2/[13/10]
15、6/9+1/9
16、7/9-4/9
17、6/9-1/4
18、3/6+3/7
19、5/8-1/2
20、8/9+2/3
21、9/25+7/25
22、25/36+11/36
23、29/33+13/66
24、5/9+7/18
25、9/10+13/25
26、7/15+7/20
27、5/9+2/7
28、5/9-7/18
29、1/2+1/3-1/4+1/5-1/6=30、3/4-3/5+4/5-4/6+5/6-5/7=31、1/2-1/2-1/2+1/2=
32、1/100000+3-32/867=33、1+1/2-1/3=
34、67/68+34/35-23/24=35、89/90+123/124-234/235=
40道簡便計算和40道脫式計算(分數加減法,帶答案)
4樓:數學愛好者
簡便計算例子演示38×12-12×12+12×40解題思路:四則運算規則(按順序計算,先算乘除後算加減,有括號先算括號,有乘方先算乘方)即脫式運算(遞等式計算)需在該原則前提下進行
解題過程:
38×12-12×12+12×40
=(38-12+40)×12
=66×12
=792
擴充套件資料=>豎式計算-計算結果:先將兩乘數末位對齊,然後分別使用第二個乘數,由末位起對每一位數依次乘上一個乘數,最後將所計算結果累加即為乘積,如果乘數為小數可先將其擴大相應的倍數,最後乘積在縮小相應的倍數;
解題過程:
步驟一:2×66=132
步驟二:1×66=660
根據以上計算結果相加為792
存疑請追問,滿意請採納
5樓:花緣
簡便計算:
3/8+7/10+5/8=17/10
7/8-(1/8+3/4)=0
4/7+1/6-4/7=1/6
2-7/9-2/9=1
3/5+7/8+2/5=15/8
7/9-(1/9+1/3)=1/3
1/4+(2/5+3/4)=7/5
5/6-3/10+1/6-7/10=0
脫式計算:
3/4+1/6-2/3=1/4
7/8-1/4+4/9=77/72
1-1/3+2/7=20/21
1/2+4/5-3/10=1
5/6-(2/3-1/9)=5/18
9/10-(3/4+1/8)=1/40
1/2+2/3-3/4=5/12
7/8-1/6+1/4=23/24
1-(3/4-2/9)=17/36
9/10-1/5-1/2=1/5
1/4+3/7+1/2=33/28
7/8-(2/3+1/6)=1/24
1-(1/3+3/5)=1/15
1/2+1/4+1/3=13/12
7/8+1/4+1/2=5/8
5/7-(4/7+1/9)=2/63
1-1/4-1/2=1/4
3/4-1/6-1/3=1/4
3/10+1/4+2/5=19/20
2/3+1/6+1/12=11/12
1-1/4-2/5=7/20
1/2+1/9+1/12=25/36
6樓:匿名使用者
30+50÷2=30+25=55
50道五年級脫式計算題帶過程和答案,有答案和過程的加分,謝謝了。 15
7樓:匿名使用者
50道五年級脫式計算題帶過
8樓:匿名使用者
下次自己做題,我可不幫你了!
0.4×125×25×0.8
=(0.4×25)×e68a84e8a2ad62616964757a686964616f31333433616234(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.
78.3×(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
32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
9000÷72×(1.25×0.7×8)
=9000÷72×7
=125×7
=875
1.25×(8+10)
=1.25×8+1.25×10
=10+12.5
=22.5
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
1/2-(4/5-1/2)
=1/2+1/2-4/5
=1-4/5
=1/5
4800÷25÷4
=4800÷(25x4)
=4800÷100
=4800÷100
=482/5-(3/8-3/5)
=2/5+3/5-3/8
=1-3/8
=5/8
3/4-(3/7-1/4)
=3/4+1/4-3/7
=1-3/7
=4/7
3.2x0.125x2.5
=0.125x8x(0.4x2.5)
=1x1
=1 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
32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
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=33
3.7x2.56-2.3
=9.472-2.3
=7.172
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
1/2-(4/5-1/2)
=1/2+1/2-4/5=1-4/5
=1/5
4800÷25÷4
=4800÷(25x4)
=4800÷100
=482/5-(3/8-3/5)
=2/5+3/5-3/8
=1-3/8
=5/8
3/4-(3/7-1/4)
=3/4+1/4-3/7
=1-3/7
=4/7
3.2x0.125x2.5
=0.125x8x(0.4x2.5)
=1x1
=10.4×125×25×0.8
=(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
61-(1.25+2.5×0.7)
=61-3
=58[(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125
=19.05-16
=3.05
408-12×24
=408-288
=120
(46+28)×60
=74x60
= 4440
42×50-17
= 2100-17
= 2083
32+105÷5
=32+21
= 53
420×(327-238)
= 420x89
= 37380
(4121+2389)÷7
=6510÷7
= 930
3.416÷(0.016×35)
= 3.416 ÷0.56
= 6.1
0.8×[(10-6.76)÷1.2]
= 0.8 x(3.24÷1.2)
= 0.8 x 2.7
= 2.16
5.67×0.2-0.62
= 1.134-0.62
= 0.514
0.4×0.7×0.25
=0.4x0.25x0.7
=0.1×0.7
= 0.07
9樓:風兒在飄搖
我這隻有一道題,待會兒別怪我沒跟你們說。45÷5+27 等於13+27 等於40
10樓:匿名使用者
不用客氣,只要知道的就告訴你,我們不知道的,你只能等著下一個問你。
11樓:匿名使用者
對不起,給你說幾道就行了,因為給你說了,我們還要因為這個給你算題呀,我給你推版送一個,用作權業幫或者快對作業就行0.46×0.25×4
=0.25×4×0.4
=1×0.4
=0.4
132+12×37
=132+314
=446
319+32×56
=319+1512
=1831
250+23+38
=250+624
=874
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