Unit Review TEK 5.3K

Elijah made the list of numbers below.

40, 41, 42, 43, 44, 45, 46, 47, 48, 49

How many of the numbers in Eliah's list are prime numbers?

What are the prime factors of 30?

Robert decided to group the magazines on his bookshelf according to titles. He noticed that $$\frac{2}{9}$$   of the magazines were Sports Illustrated, $$\frac{1}{3}$$   were Motor Cross, $$\frac{1}{6}$$   were Music Scene, and the rest were Comic Kids. What fractional part of his magazines is Comic Kids?

Lisa has 4 $$\frac{1}{4}$$   cups of flour in a flour canister, and 6 cups of sugar in a sugar canister. She needs 3 $$\frac{1}{2}$$   cups of sugar to bake a large batch of cookies. How many cups of sugar will be left in the sugar canister after she bakes the cookies?

Vanna used the fraction strips shown to help her determine the difference between $$\frac{5}{6}$$  and $$\frac{1}{4}$$   .

What is $$\frac{5}{6}-\frac{1}{4}$$  ?

Kate used 1/4 yard of red ribbon, 1/8 yard of yellow ribbon, and 1/2 yard of blue ribbon for her mom's birthday gift. What is the total amount of ribbon used for the gift?

Last week, the fourth graders at Roadtown Elementary walked 2 1/6 miles during P.E, and the fifth graders walked 1 1/2 miles. How much farther did the fourth graders walk than the fifth graders?

Sam practiced playing the cello for 3 days. On Monday he played for 2/3 of an hour. On Tuesday, he played 1/2 of an hour and on Wednesday he played 3/4 of an hour. What is Sam's total practice time?

Gary has worked on his research paper on Monday and Tuesday of this week and is 7/10 complete. Monday he completed 1/5 of the work, so how much work must he have done on Tuesday?

Jose has 8 3/4 pounds of bananas at his fruit stand. If he sells 2 1/4 pounds of bananas, how many pounds does he have remaining

Bobbie is a carpenter and is building a treehouse for his nephew. He has a piece of lumber that is 2 1/6 of a yard long. He cuts 1 1/2 yard away to build a support for the treehouse. How long is the lumber piece that remains?