Arithmetic Grade Three
Lesson Forty-two: Addition and Multiplication
Multiplication can be thought of as a short cut for adding the same number
over and over. Consider this example:
Here we added three threes for a sum of 9. We can translate this addition
problem to a multiplication problem like this:
Here's another example:
Here we add four fours. We can write this as a
multiplication problem like this:
Continue to next page of lesson