When adding coins, try breaking apart the money into their respective units (pennies, nickels, dimes, and quarters) and adding the like units together and then combining the totals.For example, if you are adding 45 cents to 1 dime, 2 nickels, and 3 pennies
Break apart 45 cents into 4 dimes and 1 nickel
Combine the 4 dimes and the 1 dime, and then the 1 nickel and the 2 nickels
Sum up each coin type (5 dimes = 50 cents, 3 nickels = 15 cents, 3 pennies = 3 cents)