http://youtu.be/3TWoBNtov2M

1.What does a raised dot or parentheses represent (should be in your notes)?

• The raised dot and parentheses represents multiplication.

2.How would you write the phrase the difference of 10 and 2 as an expression (hint: look in the margin on page 33)?

• 10 – 2

3.How would you express the quotient of 15 and 50?

• 15 ÷ 50