Unit II Study Guide

Name______Date______Period______

CCSS.Math.Content.6.NS.B.4 - Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1-100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4 (9 + 2).

1. What is the LCM of 6 and 15?

2. What is the GCF of 48 and 60?

3. Which of the following lists three multiples of 25?

a. 1, 5, 25

b. 10, 15, 20

c. 15, 20, 25

d. 25, 50, 100

4. A fish sandwich is on a school’s lunch menu every 6 school days. Spaghetti with meat sauce is on the menu every 9 school days. If both items are on the menu today, when will both be served again?

5. You want to make bouquets of balloons. You choose 18 yellow, 30 blue, and 42 red balloons. Each bouquet will have the same number of each color. What is the greatest possible number of bouquets you can make?

**Simplify the following expressions**

6. (54 + 63) =

7. (35 + 15) =

**Expand using the distributive property**

8. 3(3 + 7)=

9. 12(5+7)=

**Solve the following**

10. 0.7 + 2.82

11. 14 + 38.2

12. 5.14 x 21

13. 50.2 x 2.04

14. 57.62 – 41.2

15. 25 – 13.26

16. 38.87 ÷ 2.3

17. 224 ÷ .4

18. Which of the following choices list all of the factors for the number twelve?

a. 1, 2, 6,12

b. 1, 3, 4, 12

c. 1, 2, 3, 4, 6

d. 1, 2, 3, 4, 6, 12

19. A math class is making fruit baskets to donate to charity. The class has collected 24 oranges and 36 apples. The teacher wants the same number of oranges in every basket. What is the greatest number of baskets the class can make?

20. Hot dogs come in packs of 10 and hot dogs buns come in packs of 8. What is the least amount of dogs and buns you can buy in order to come out with the same amount of each one?