Emilio is 1 year 7 months old and Brooke is 2 years 8 months old. How much older is Brooke than Emilio?
a. 1 year 1 month
b. 2 years
c. 1 month
d. 1 year 2 months
Answer: a. 1 year 1 month
Subtract the months first, then the years.
Remember that it is best to write the problem
in columns and subtract the right-most column (months) first, then the left-most column
(years): 8 months − 7 months = 1 month; 2
years − 1 year = 1 year. So, Brook is 1 year 1
month older than Emilio.
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