Is group C greater than group D?
To find out if group C is greater than group D, we need to work out the numbers in each group. This number has one tens block, which is worth one ten. This number has five ones. One ten and five ones is 15.
The number in group D has two tens and five ones. Two tens and five ones makes 25. 15 is less than 25. The number in group C is less than the number in group D.
The answer to the question is group C greater than group D is no.