Lesson 8- Decimal Operations

Mark currently has $12.50 saved up. He is going to save $2.75 per week for the next five weeks. After five weeks, how much has Mark saved, including the initial $12.50? Show the work you use to find the answer.

Danelyn has 8 meters of ribbon that she cuts into pieces that are 0.65 meters long.

(a) What is the greatest whole number of pieces that Danelyn can cut from this ribbon? Show how you arrived at your result.

(b) If Danelyn cuts this many pieces of ribbon, how much ribbon will be left over?

DaSani buys 3.8 pounds of onions that cost $2.75 per pound and 9.4 pounds of potatoes that cost $1.35 per pound, how much did DaSani spend in total?

A local frozen yogurt shop sells it yogurt and toppings for $0.45 per ounce.

(a) If Vadym bought 8.4 ounces of yogurt, how much did the yogurt cost? Show the work that leads to your answer

(b) Vadym’s friend Lukas spent $4.86 on yogurt. How many ounces did Lukas buy? Justify your answer.

: While at the movie theater, Sophia buys three drinks, each of which costs $5.75, one box of popcorn, which costs $7.35, and two boxes of candy, each of which costs $4.28.

(a) How much did Sophia spend in total? Justify your answer.

(b) If Sophia pays for the food with two $20 bills, how much does she receive in change?

Liam is carrying water in a bucket but is unsure how many gallons it holds. He knows that the bucket and water weigh 32.49 pounds together. The bucket alone weighs 2.61 pounds and water weighs 8.3 pounds per gallon. How many gallons of water is Liam carrying?