2. Chapter 3 Decimal Review

4. Question # 1  Add or subtract. 1.025 – 0.58 a)0.445 b)0.454 c)0.554

5. Question #2 ▪3 x 1.42 a)0.426 b)4.26 c)42.6

6. Question #3 6.7 x 0.5 a)3.35 b)335 c)33.5

8. Question #4 ▪13.5 – 2.84 a)10.66 b)10.6 c)10.64

9. Question #5 ▪20 – 5.98 a)13.02 b)14.02 c)14.22

10. Question #6 8.37 x 89.6 a)749.952 b)74.9952 c)739.937

11. Question #7 2.58 x 1000 a)258 b)0.00258 c)2580

12. Question #8  Evaluate x ÷ y if x= 90.72 and y= 28. A. 3.24 B. 0.324 C. 32.4 D. 324

13. Question #9  Find the area of a rectangle with a length of 6.1 meters and a width of 4.3 meters. A. 10.4m² B. 26.23m² C. 2.623m² D. 26.23 m

14. Question #10  Find the perimeter of a square whose sides measure 9.5 inches.. A. 19 inches B. 90.25 inches C. 95 inches D. 38 inches

15. Write the following decimal in standard and expanded form. Sixteen and three thousandths a. 16. 3000; (1x 16) + (3 x 1) b. 16.003; (1 x 10) + (6 x 1) + (3 x 0.001) c. 0.1603; (1 x0.1) + (6 x 0.01) + (3 x 0.0001) Question #11

16. Question #12  Estimate using front-end estimation. -25.54 + 33.45

17. Question #13  Estimate using rounding. 2.64 + 3.63 + 4.56

18. Question #14  Round each decimal to the indicated place-value position. 1. 5.49; tenths 2. 30.95; ones 3. 0.04569; thousandths

19. Compare the following decimals. Choose the symbol that makes this statement true. 2.5634 ______ 2.5364 a. > b. < c. = Question #15

20. List the following decimals from greatest to least. 6.03, 6.003, 0.603, 0.63 a. 0.603, 0.63, 6.003, 6.03 b. 6.03, 6.003, 0.63, 0.603 c. 6.003, 6.03, 0.63, 0.603 Question #16

21. Which one of these is rounded properly by using clustering? a. 6.93 + 7.06 + 8.36 + 6.99 = 32 b. 7.56 + 8.04 + 8.33 + 7.99 = 32 c. 6.93 + 7.06 + 6.5 + 7 = 24 Question #17