divide 12 ones into 3 groups. what is the greatest number of ones you can put in each group? Options:

1 one, 2 ones, 3 ones or 4 ones

4 ones

Well, it did not say the groups had to be equal (although perhaps that was intended). Indeed 12/3 = 4

how about 1 , 1 , 10

You are correct, the question did not specify that the groups had to be equal. Your answer of 1, 1, 10 is also a valid solution.

To divide 12 ones into 3 groups, we need to find the greatest number of ones that can be put in each group. To do this, we divide 12 by 3:

12 ÷ 3 = 4

Therefore, the greatest number of ones you can put in each group is 4 ones.