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\(53.68x15.6-53.68x5.6\)
\(=53.68x\left(15.6-5.6\right)\)
\(=53.68x10\)
\(=536.8\)
Nhớ k mk nha bn minh tuyệt vọng lắm!
53,68*15,6-53,68*5,6
=53,68* (15,6-5,6)
=53,68-10
=5,368
![](https://rs.olm.vn/images/avt/0.png?1311)
1) \(A=20,11\times2,4+1,4\times20,11\times2-10,05\times10,4\) (tách 40,22 = 20,11 x 2)
\(=20,11\times\left(2,4+1,4\times2\right)-10,05\times10,4\)
\(=20,11\times5,2-10,05\times5,2\times2\) (tách 10,4 = 5,2 x 2)
\(=5,2\times\left(20,11-20,1\right)\)
\(=5,2\times0,01\)
\(=0,052\)
![](https://rs.olm.vn/images/avt/0.png?1311)
34,67+19,82+43,65+56,35+73,33+86,08
=(34,67+73,33)+(19,82+86,08)+(43,65+56,35)
=108+105,9+100
=313,9
k mik nhé Trần Thị Minh Châu
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
3,265 + 4,572 + 2,735 + 1,128
= (3,265 + 2,735) + (4,572 + 1,128)
= 6 + 5,7
= 11,7
3,265+4,572+2,735+1,128
=(3,265+2,735)+(4,572+1,128)
= 6 + 6
= 12
36,67+13,92+43,65+65,33+86,08+56,35=[36,67+65,33]+[13,92+86,08]+[43,65+56,35]
=102+100+100
=302
Tình giá trị biểu thức
36,508×92+36,508×7+36,508