copyright@ed2netlearning,inc1 compare and order decimals grade 3
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copyright@Ed2netLearning,Inc 1
COMPARE AND ORDER DECIMALS
GRADE 3
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Hello, How are you doing?Today, we are going to start a new lesson on
Compare and Order Decimals.
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Compare DecimalsDecimals are compared the same way as
whole numbers.
Ways to Compare Decimals. Using Models Using Number Line Using Place Value Chart
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Comparison using ModelTo 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
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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.
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Place Value ChartDecimals can be compared using Place
Value chart.To compare 2.39 and 2.46
Ones . Tenths Hundredths
2 . 3 9
2 . 4 6
3 > 4
Thus, 2.46 > 2.39
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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.
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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.
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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
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Which is greater: 1.6 or 1.65?1.65 is greater than 1.6
Ones . Tenths Hundredths
1 . 6 0
1 . 6 5
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Arrange the numbers from greatest to least. 1.6, 1.5, 1.25, 1.85
Answer – 1.85 > 1.6 > 1.5 > 1.25
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Circle the smaller numbera) 2.56b) 2.65c) 2.05d) 2.06
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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) Nadiab) Jackc) Both ran at the same speedd) Information is insufficient
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Arrange the numbers from least to greatest.2.3, 4.6, 2.5, 1.2Answer – 1.2 < 2.3 < 2.5 < 4.6
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Which of the pair of decimals are equal?a) 1.8 and 8.1b) 3.5 and 3.3c) 0.33 and 3.30d) 1.5 and 1.50
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ASSESSMENT
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1. Bob’s model car costs $2.05. Tom’s model car costs $2.50. Who paid more for the model car?a) Bobb) Tomc) Both paid the same amountd) None of the above
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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
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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
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4. Which decimal among the following is greatest?a) 3.58b) 8.35c) 3.85d) 8.53
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5. Given below is the record of the runners. Who ran fastest?
Name of the runner Time taken (seconds)
Harrah 2.26
Wilson 2.26
Rooks 2.01
Answer – Both Harrah and Wilson
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6. Who took the least time to complete the race?
Answer - Rooks
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7. How many runners took the same time to complete the race? Name them. Answer – 2, Harrah and Wilson
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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
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9. Which decimal is least?a) 5 tenthsb) 3 hundredthsc) 0.02d) 1.02
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10. Compare. Write >, < or =a) 0.56 0.65
b) 0.50 0.56
c) 0.3 0.30
Answer –
a) <
b) <
c) =
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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
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Well Done!Now practice worksheets on the Lesson.
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