When I see the same number, 5+5, I just Xby2=10. 5+5=10 5X2=10 see the thought of repeated addition.
MrsOuk 2 years ago
When I see the same number, 5+5, I just Xby2=10. 5+5=10 5X2=10 see the thought of repeated addition.
MrsOuk 2 years ago