27.39+27.63-2.27
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
27 . 39 + 27. 63 - 2 . 27
= 27 . (39 + 63 - 2 )
=27 . 100 = 2700
27.39 + 27.63 -2.27
= 27 . [ 39 + 63 - 2 ]
= 27 . 100
= 2700
Click mình mình click lại 3 cái !
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
=27. ((39+(63-2).27
=27.(39+61).27
=27.100.27
=2700.27
=72900
nhớ k cho mình nha
![](https://rs.olm.vn/images/avt/0.png?1311)
\(A=8\cdot17\cdot125=\left(125\cdot8\right)\cdot17=1000\cdot17=17000\)
\(B=\left(25\cdot4\right)\cdot37=100\cdot37=3700\)
\(C=\left(75+50-25\right)\cdot58=100\cdot58=5800\)
\(D=\left(39+63-2\right)\cdot27=100\cdot27=2700\)
A=8.17.125= (8.125).17= 1000.17=17000
b=4.37.25=(4.25).37=100.37=3700
c= 58.75+58.50-58.25= 58.(75+50 - 25)= 58.100=5800
d=27.39+27.63-2.27= 27.(39+63-2)=27.100=2700
![](https://rs.olm.vn/images/avt/0.png?1311)
a)58.75+58.50-58.25
=58.(75+50-25)
=58.100
=5800
b)27.39+27.63-2.27
=27.(39+63-2)
=27.100
=2700
c)128.46+128.32+128.22
=128.(46+32+22)
=128.100
=12800
a) 58.75 + 58 . 50 - 58 . 25
= 58 . ( 75 + 50 - 25 )
= 58 . 100
= 5800
b) 27 . 39 + 27 . 63 - 2 . 27
= 27 . ( 39 + 63 - 2 )
= 27 . 100
= 2700
c) 128 . 46 + 128 . 32 + 128 . 22
= 128 . ( 46 + 32 + 22 )
= 128 . 100
= 12800
![](https://rs.olm.vn/images/avt/0.png?1311)
a)27.39+27.63-2.27
=27.(39+63-2)
=27.100
=2700
b) 66.25+5.66+66.14+33.66
=66.(25+5+14+33)
=66.77
=5082
c) 136.23+136.17-40.36
=136.(23+17)-40.36
=136.40-40.36
=40.(136-36)
=40.100
=4000
d) 48.19+48.115+134.52
=48.(19+115)+134.52
=48.134+134.52
=134.(48+42)
=134.100
=13400
![](https://rs.olm.vn/images/avt/0.png?1311)
a,
58.75 + 58.50 - 58.25
= 58.(75 + 50 - 25)
= 58. (125 - 25)
= 58.100
= 5800
b, 27.39 + 27.63 - 2.27
= 27.(39 + 63 - 2)
= 27.(102 - 2)
= 27.100
= 2700
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 58.75 + 58.50 - 58.25
= 58. (75 + 50 - 25)
= 58. 100
= 5800
b) 27.39 + 27.63 + 2.27
= 27. (39 + 63 - 2)
= 27. 100
= 2700
c) 128.46 + 128.32 + 128.22
= 128.(46 + 32 + 22)
= 128. 100
= 12800
d) 12.35 + 35.182 - 35.94
= 35.(12 + 182 - 94)
= 35. 100
= 3500
e) 48.19 + 48.115 + 134.52
= 48.(19 + 115) + 134.52
= 48.134 + 134.52
= 134.(48 + 52)
= 134.100
= 13400
f) 136.23 + 136.17 - 40.36
= 136.(23 + 17) - 40.36
= 136.40 - 40.36
= 40.(136 - 36)
= 40.100
= 4000
g) 17.93 + 116.83 + 17.23
= 17.(93 + 23) + 116.83
= 17.116 + 116.83
= 116.(17 + 83)
= 116.100
= 11600
h) 19.27 + 47.81 + 19.20
= 19.(27 + 20) + 47.81
= 19.47 + 47.81
= 47.(19 + 81)
= 47.100
= 4700
i) 87.23 + 13.93 + 70.87
= 87.(23 + 70) + 13.93
= 87.93 + 13.93
= 93.(87 + 13)
= 93.100
= 9300
#NgHn
![](https://rs.olm.vn/images/avt/0.png?1311)
125.98 - 25.46.5
= 125.98 - 25.5.46
= 125.98 - 125.46
= 125.(98 - 46)
= 125.52
= 125.4.13
= 500.13
= 6500
136.23 + 136.17 - 40.36
= 136.(23 + 17) - 40.36
= 136.40 - 40.36
= 40.(136 - 36)
= 40.100
= 4000
27.39 + 27.63 - 2.27
= 27.(39 + 63 - 2)
= 27.100
= 2700
a) 125 . 98 - 25 . 46 . 5
= 125 . 98 - 125 . 46
= 125 .(98 - 46)
= 125 . 52
= 6500
b) 136.23 + 136.17 - 40.36
= 136 . (23 + 17) - 40 . 36
= 136 . 40 - 40 . 36
= (136 - 36) . 40
= 100 . 40
= 4000
27.39 + 27.63 - 2.27
= 27 . (39 + 63 - 2)
= 27 . 100
= 2700
\(27\cdot39+27\cdot63-2\cdot27\)
\(=27\cdot\left(39+63-2\right)\)
\(=27\cdot100\)
\(=2700\)
27.39+27.63-2.27
=27.(39+63-2)
=27.100
=2700