508:(x-24)=329-150:2
508:(x-24)=329-75
508:(x-24)=254
x-24 =508:254
x-24 =2
x =2+24
x 26
508:(x-24)=329-150:2
508:(x-24)=329-75
508:(x-24)=254
x-24 =508:254
x-24 =2
x =2+24
x 26
508:(x-24)=329-150:2
Bài 1: Tìm x
a) 7x + 2x = 918
b) 16 . x - 9 . x = 145 - 225 : 51
c) 3. ( x - 2 ) + 150 = 240
d) 580 : ( x - 24 ) = 329 - 150 . 2
e) 7. ( x - 14 ) + 35 = 25 + 279 : 9
g) [ ( 6 . x -72) : 2 - 8] . 28 = 5628
1. Tìm x biết :
3/4 = x/24
2.Tính tổng biết :
4 + 5 + 6 +.....+ 329 + 330.
16 tạ 40kg=...tấn
5m2 8dm2=508....
7,084m3=.....m3......dm3
2 giờ15 phút=.....giờ
2km 50m=....m
1280g=1,28......
0,364m2.=......dm2
9m3 15dm3=9,015......
150 giây=...... phút ........giây
c) 0,092 x 100 + 290 : 7,25
D) 6,78 - 141 x 0,01 + 508 : 100
2 x \(\frac{3}{13}\) x \(\frac{26}{58}\) x 4 x \(2\frac{15}{24}\)x \(\frac{8}{21}\) =?
2 - ( \(\frac{5}{3}\) + X - 7\(\frac{5}{24}\) ) :16\(\frac{2}{3}\) =0
\(\frac{x}{27}\)- \(\frac{2}{9}\)=\(\frac{6}{18}\)
\(\frac{15}{26}\)+\(\frac{x}{13}\)=\(\frac{46}{52}\)
\(\frac{12}{7}\): x +\(\frac{2}{3}\)=\(\frac{7}{5}\)
\(\frac{24}{x}\):\(\frac{8}{3}\)=\(\frac{3}{5}\)
x + 3\(\frac{1}{2}\)+ x = 24\(\frac{1}{4}\)
Hinh vuong ki la co tong 3 so o tung hang ngang, tung cot doc, tung duong cheo deu bang nhau.
Hay doi cho hai so de khi doi cho hai so do cho nhau thi ta co hinh vuong ki la trong hinh duoi day.