giups nhe !!! mn

3^4 + [ 75 : 15+ ( 10 - 8 ) ^4 - 5^3] de bai la : Tinh bang cach hop li .

* chu y : ket qua la so tu nhien nha moi nguoi

^-^

de  BAI TINH BANG Cach hop li

32/48*75* 50

1. Cho A = { 1; 2; 3; 4; 5; 6; 7; 8; 9 }. Hay viet tap hop A bang cach chi ra tinh chat dac trung bang 3 cach

2. Tim 3 so tu nhien lien tiep sao cho tong 3 so do la 36

3. Viet tap hop A cac so tu nhien co 3 chu so sao cho tong cac chu so cua moi so la 5

                          giup minh nhe minh se tickcho ^^ thank you very much !!!

                      \(\frac{\frac{15}{8}-\frac{15}{6}-\frac{15}{32}+\frac{15}{64}}{3-\frac{3}{2}-\frac{3}{4}+\frac{3}{8}}\) 

19.25+9.95+38.15

Ai dung thi mk tich < nho la tinh bang cach hop li nhe>

tinh bang cach hop li 

a, 3/7+2/9+5/9+-9/10

b, 3/4+-1/7+14/7+-6/7+32/28

6/5+7/6+8/7+......+2008/2007

Day la bai tinh bang cach thuan tien nhat nhe.

Cach ban chi cho minh cach lam va ket qua nhe.

Cam on cac ban nhieu.

Tinh cach hop li

A=5/12 . 3/4 - 6/8 : 7/15 + 3/4 : 7/12 - 6/8 . 8/15

B=(-2,5) . (-4) . (-7,9)

Tinh tong sau bang cach hop li nhat: (1+3+5+...+99)-(2+4+6+...+100)