Question

1)aflati cat nr de forma 7x3x cu bara deasupra sunt divizibile cu
a)2 b)5 c)
2)scrie toate nr de forma 5xx cu bara deasupra divizibile cu
a)2 b)5 c) 10
ajutor!..dau coronita!

Answer 1

7x3x divizibil cu 2.
x=0,2,4,6,8.
7030,7232,7434,7636,7838.

7x3x divizibil cu 5.
x=0,5
7030,7535

5xx divizibil cu 2.
x=0,2,4,6,8
500,522,544,566,588

5xx divizibil cu 5
x=0,5
500,555

5xx divizibil cu 10
x=0
500

Answer 2

1)7x3x a)7030,7032,7034,7036,7038,7130,7132,7134,7136,7138,7230,7232,7234 etc........b)7030,7035,7130,7135,7230,7235,7330,7335etc......
2)5xx a)500,502,504,506,508,510,512,514,516,518,520,522,524,526etc......b)500,505,510,515,520,525,530,535,540,545etc......c)500,510,520,530,540,550,560etc.