if 3+x=6 what is x

You can turn that around. Work it as a word family.

3 + ___ = 6

6 - 3 = ___

What do you think?

??

What number can be added to 3 to make 6?

3 + ? = 6?

Sorry! I should have written "work it as a number family"!!

=)

1.6 2.3 3.63 4.3 5..