1. FSA Practice Problems Number System – 6 th Grade Examples 6.NS.2.3 and 6.NS.2.4

2. Find the sum. 1 The answer is 70.543 Remember to line up the decimal points first, and then add. Question 1

3. Find the difference. 2 Question 2 The answer is 2.712 Remember to line up the decimal points. Fill in empty spaces with zeros. Borrow carefully.

4. Find the product. 3 3 Question 3 The answer is 1.70829 Remember to count the numbers behind the decimal points when placing the decimal in your answer.

5. What is the quotient? 4 Question 4 The answer is 7030. Remember to move the decimal points in the divisor and dividend.

6. Determine which operation you should use. Solve then select an anwer. 5 Question 5 1.5 + 1.5 + 1.5 + 1.5 + 1.5 = 7.5 Or 1.5 x 5 = 7.5

7. Solve the problem. 6 Question 6 GCF = 7 Factors of 49: 1 x 49 7x7 Factors of 56: 1 x 56, 2 x 28, 4 x 14 8 x 7. Remember that you can also use prime factorization to solve this problem.

8. Find the LCM. 7 Question 7 LCM = 24 Multiples of 8: 8, 16, 24,… Multiples of 12: 12, 24,… Remember that you can use prime factorization to solve this problem.

9. Complete the problem. 8 Question 8 Then answer is 18 students. You can solve this problem by finding the GCF. Prime Factorization: 72 = 2 x 2 x 2 x 3 x 3 90 = 2 x 3 x 3 x 5 GCF is 2 × 3 × 3 = 18

10. Complete the problem. 8 Question 9 12 x (2 + 3) You can factor out a 12.

11. Complete the problem. 9 Question 10 LCM = 24 So the red line and the blue line will leave every 24 minutes. The time will be 4:24 pm.

12. Answer the question. Justify your answer. 10 B. 20 The least total number of marbles they can each have is 20 because the LCM is 20. Question 11

13. Complete the problem. Show your work. 11 Her end balance is $77.64. Remember withdraw means to take out money and deposit means to put in money. Question 12

14. Question 13 B.The machines will both be cleaned in 24 weeks. This is another LCM Question. Complete the problem. Show work to support your answer.

15. Question 14 1.7 + 0.8 = 2.5 meters

16. Complete the problem. Show work and then select your answers. 24 + 15 = 3(8 + 5) 42 + 60 = 6(7 + 10) 36 + 16 = 4(9 + 4) Factor or add and multiply to check your work! Question 15

17. Complete the problem. He needs 0.1 more meters. 1.7 + 0.8 = 2.5 2.5 – 2.4 = 0.1 Question 16

18. Complete the problem. Show work to support your answer. Question 17 B. The LCM is 36. Construct a multiples list or use prime factorization.

19. Complete the problem. Show work to support your answer. Question 18 210 cubes Volume = L x W x H Volume = 5 x 7 x 6 Width can be tricky since part is on the left and part is on the right.