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35.34+35.38+65.75+65.45
=35.(34+38)+65.(75+45)
=35.72+65.120
=2520+7800
=10320
35.34+35.38+65.75+65.45
=35(34+38)+65(75+45)
=35.72+65.120=2520+7800=10320
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![](https://rs.olm.vn/images/avt/0.png?1311)
Giải:
\(35.34+35.38+65.75+65.45\)
\(=35\left(34+38\right)+65\left(75+45\right)\)
\(=35.72+65.120\)
\(=2520+7800\)
\(=10320\)
Chúc bạn học tốt!
Bài 1 . Tính nhanh
35 . 34 + 35 . 38 + 65 . 75 + 65 + 45
= 35 . ( 34 + 38 ) + 65 . ( 75 + 45 )
= 35 . 72 + 65 . 120
= 2 520 + 7 800
= 10 320
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(=38\left(63+37\right)=38.100=3800\)
b) \(=53\left(12+172-84\right)=53.100=5300\)
c) \(=35\left(34+38\right)+65\left(75+45\right)=35.72+65.120=10422\)
d) \(=39.8+15.8+21.8=8\left(39+15+21\right)=8.75=600\)
e) \(=36\left(28+82\right)+64\left(69+41\right)=36.110+64.110=110\left(36+64\right)=110.100=11000\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 35.34 + 35.86 + 65.75 + 65.75
= 35.(34 + 86) + 75.(65 + 65)
= 35.120 + 75.130
= 4200 + 9750
= 13950
b, 3.25.8 + 4.37.6 + 2.38.12
= 24.25 + 24.37 + 24.38
= 24.(25 + 37 + 38)
= 24. 100
= 2400
c,66.25 + 5.66 + 66.14 + 33.66
= 66 . (25 + 5 + 14 + 33)
= 66 .77
=5082
d, 48 .19 + 48.115 + 134.52
= 48 . (19 + 115) + 134.52
= 48 . 134 + 134.52
= 134 . (48 + 52)
= 134 . 100
= 13400
35.34+35.85+75+65.75
=13950
3.25.8+4.37.6=2.38.12
=2400
66.25+5.66+66.14+33.66
=5082
48.19=48.115+134.52
=13400
hok tốt
![](https://rs.olm.vn/images/avt/0.png?1311)
35.34+35.38+65.75+65.45
=35(34+38)+65.(75+45)
=35.72+65.120
=2520+7800
=10320
kết quả là :
201,82
đs
mk ko phải là ran love shin-ichi
201,92 day