[b]Fluently add, subtract, multiply, and divide decimals.[br][/b]Be sure to answer the showcase your knowledge questions after each practice session.
[i]Answer these open ended questions on your own or with others to form deeper math connections.[/i]
What do you notice about the positions of the decimals in a sum or difference?
In finding [math]7.866+395.4[/math], Alex wrote the following calculation: [br][br][math]\phantom{+00000}7.866\\\underline{+\phantom{000}395.400}[/math][br][br]Why would Alex write extra zeros?
[i]Answer these open ended questions on your own or with others to form deeper math connections.[/i]
What do you notice about the size of the product compared to the factors?
Shontay pays $3.78 for a cappuccino on days she's running late to work. One week she was late on Tuesday, Thursday, and Friday. How much did she spend on cappuccinos that week?
How can you tell when you need to divide versus multiply when using decimals?
The meal costs $52.95 for 5 people. Juan ordered a dessert for $2.50. If Juan deducts this amount[br]from the total, how much will each of the other people pay for their meal? [br]