1,5,10,15,20,50,100,110,150
9. The square root of 81 is 9.
1, 2, 4, 7, 8, 14, 28, 56.
No
There are seven: 1 2 4 8 16 32 64.
No. The way to figure that out is the divisibility rules. For three, you add up those numbers, and then you see if 3 can go into it. But since it equals 5, three can not go into it.
You can not simplyfy it any more, because there are no Numbers that go both equaly divided into 11 and 100. (1 doesn't count.)
75 / 2 = 37.5
No, it goes 3.5 times.
1,2,4,8,16,32
no. 14.25, there is a 1/4 remainder
1, 2, 4, 8, 16.