1. copyright@Ed2netLearning,Inc1 COMPARE AND ORDER DECIMALS GRADE 3

2. copyright@Ed2netLearning,Inc2 Hello, How are you doing? Today, we are going to start a new lesson on Compare and Order Decimals.

3. copyright@Ed2netLearning,Inc3 Compare Decimals Decimals are compared the same way as whole numbers. Ways to Compare Decimals.  Using Models  Using Number Line  Using Place Value Chart

4. copyright@Ed2netLearning,Inc4 Comparison using Model To Compare 0.9 and 0.5 Ones in both numbers are equal. On comparing Tenths we find that 9 tenths > 5 tenths. Thus, 0.9 > 0.5

5. copyright@Ed2netLearning,Inc5 Steps to compare decimals using Model Compare the ones first. If ones is same in both cases, then compare tenths. If tenths is same, compare the hundredths. Decimals having greater tenths or hundredths is greater.

6. copyright@Ed2netLearning,Inc6 Place Value Chart Decimals can be compared using Place Value chart. To compare 2.39 and 2.46 Ones.TenthsHundredths 2.39 2.46 3 > 4 Thus, 2.46 > 2.39

7. copyright@Ed2netLearning,Inc7 Steps to Compare decimals using Number line Step 1: Line up the decimal points. Compare the greatest place first. Step 2: Compare the next greatest place. Step 3: order the decimals from least to greatest.

8. copyright@Ed2netLearning,Inc8 Compare Decimals using number line  Place the decimal points on the number line.  The number on the left of the number line is least.  The number on the right of the number line is greatest.

9. copyright@Ed2netLearning,Inc9 To compare 3.5 and 2.7 using number line 2.7 3.5 2.7 is on the left of the Number line. So, 2.7 < 3.5

10. copyright@Ed2netLearning,Inc10 Which is greater: 1.6 or 1.65? 1.65 is greater than 1.6 Ones.TenthsHundredths 1.60 1.65

11. copyright@Ed2netLearning,Inc11 Arrange the numbers from greatest to least. 1.6, 1.5, 1.25, 1.85 Answer – 1.85 > 1.6 > 1.5 > 1.25

12. copyright@Ed2netLearning,Inc12 Circle the smaller number a) 2.56 b) 2.65 c) 2.05 d) 2.06

13. copyright@Ed2netLearning,Inc13 The fifth grade students held a contest to see who could run faster in a certain amount of time. Nadia ran 1.65 miles. Jack ran 1.63 miles. Who ran faster? a) Nadia b) Jack c) Both ran at the same speed d) Information is insufficient

14. copyright@Ed2netLearning,Inc14 Arrange the numbers from least to greatest. 2.3, 4.6, 2.5, 1.2 Answer – 1.2 < 2.3 < 2.5 < 4.6

15. copyright@Ed2netLearning,Inc15 Which of the pair of decimals are equal? a) 1.8 and 8.1 b) 3.5 and 3.3 c) 0.33 and 3.30 d) 1.5 and 1.50

16. copyright@Ed2netLearning,Inc16 ASSESSMENT

17. copyright@Ed2netLearning,Inc17 1. Bob’s model car costs $2.05. Tom’s model car costs $2.50. Who paid more for the model car? a) Bob b) Tom c) Both paid the same amount d) None of the above

18. copyright@Ed2netLearning,Inc18 2. Gregg and Kremlin went to the Pizza Hut. Gregg ate 1.5 of the burger while Kremlin ate 2 burgers. Who ate more burgers? Answer - Kremlin

19. copyright@Ed2netLearning,Inc19 3.Write an order of decimals from greatest to least. 4.55, 1.53, 4.53, 1.55 Answer – 4.55 > 4.53 > 1.55 > 1.53

20. copyright@Ed2netLearning,Inc20 4. Which decimal among the following is greatest? a) 3.58 b) 8.35 c) 3.85 d) 8.53

21. copyright@Ed2netLearning,Inc21 5.Given below is the record of the runners. Who ran fastest? Name of the runnerTime taken (seconds) Harrah2.26 Wilson2.26 Rooks2.01 Answer – Both Harrah and Wilson

22. copyright@Ed2netLearning,Inc22 6.Who took the least time to complete the race? Answer - Rooks

23. copyright@Ed2netLearning,Inc23 7.How many runners took the same time to complete the race? Name them. Answer – 2, Harrah and Wilson

24. copyright@Ed2netLearning,Inc24 8.A fruit tray had 2.5 pounds of melon and 2.9 pounds of berries. Which fruit in the basket is more? Answer - berries

25. copyright@Ed2netLearning,Inc25 9. Which decimal is least? a) 5 tenths b) 3 hundredths c) 0.02 d) 1.02

26. copyright@Ed2netLearning,Inc26 10. Compare. Write >, < or = a) 0.56  0.65 b) 0.50  0.56 c) 0.3  0.30 Answer – a) < b) < c) =

27. copyright@Ed2netLearning,Inc27 Recap Compare Decimals Comparison using models Steps to compare Decimals using model Place Value chart Steps to compare Decimals using Number line Solved Examples Practice Problems

28. copyright@Ed2netLearning,Inc28 Well Done! Now practice worksheets on the Lesson.