I would use a tens chart because both numbers are multiples of 10, and there both under 100, so it would work out better if u use a tens chart, since the numbers are in the tens place and would give u a product of 10.
i hope this helps u <span />
Answer :
C. 66.11 > 66.10 > 21.10
15+10
i believe this is right
I can! What problem do u need help on