2. The three different types of subtraction problems are separation problems, comparison problems, and part-whole problems.
-Separation problems are take away problems, it involves having one amount and taking another from it. For example: Joe had 12 pennies and gave Sue 4 pennies. How many pennies does Joe have left? Answer: Joe has 8 pennies left.
-Comparison problems are problems where you find the difference. For example: Bob has 10 quarters and Ben has 5 quarters. How many more quarters does Bob have than Ben? Answer: Bob has 5 more quarters than Ben has.
-Part-whole problems are when you know one part and you know the total, and the other part needs solved