GCF vs LCM: Quiz Challenge

Sarah has 24 red balloons and 36 blue balloons. She wants to group them into the largest possible equal groups without mixing colors. How many balloons will be in each group? Which method would you use to solve?

• GCF

• LCM

Tags

CCSS.6.NS.B.4

Two friends are planning to meet. One friend visits the park every 4 days, and the other every 6 days. If they both visited the park today, in how many days will they meet at the park again?

• GCF

• LCM

Tags

CCSS.6.NS.B.4

A gardener is planting rows of flowers. He has 30 tulips and 45 roses. He wants to plant them in rows with the same number of flowers without mixing the types. What is the maximum number of flowers he can plant in each row? Which method would you use to solve?

• GCF

• LCM

Tags

CCSS.6.NS.B.4

Lisa is making gift bags. She has 20 candies and 30 chocolates. She wants each gift bag to have the same number of candies and chocolates. What is the greatest number of gift bags she can make?

• LCM

• GCF

Tags

CCSS.6.NS.B.4

A traffic light changes every 45 seconds, and another one changes every 60 seconds. If they both change at the same time now, after how many seconds will they change at the same time again? Which method would you use to solve?

• GCF

• LCM

Tags

CCSS.6.NS.B.4

Tom has two pieces of ribbon. One is 56 inches long, and the other is 72 inches long. He wants to cut them into pieces of equal length without any leftover. What is the greatest length each piece can be? Which method would you use to solve?

• GCF

• LCM

Tags

CCSS.6.NS.B.4

A school bell rings every 15 minutes, and another bell rings every 20 minutes. If they both ring at 8:00 AM, when will they ring together again? Which method would you use to solve? Which method would you use to solve?

• LCM

• GCF

Tags

CCSS.6.NS.B.4

A baker is making batches of cookies. He has 48 chocolate chip cookies and 64 oatmeal cookies. He wants to make the largest possible batches with the same number of each type of cookie. How many cookies will be in each batch? Which method would you use to solve?

• LCM

• GCF

Tags

CCSS.6.NS.B.4

Two runners start running around a track at the same time. One completes a lap every 9 minutes, and the other every 12 minutes. After how many minutes will they both be at the starting point together again? Which method would you use to solve?

• LCM

• GCF

Tags

CCSS.6.NS.B.4

A teacher has 28 pencils and 42 erasers. She wants to distribute them into the greatest number of identical sets without any leftovers. How many items will be in each set?

• GCF

• LCM

Tags

CCSS.6.NS.B.4