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Splash Screen. Lesson Menu Write 12.004 in word form. A. twelve and four B. twelve and four tenths C. twelve and four hundredths D. twelve and four thousandths.

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Presentation on theme: "Splash Screen. Lesson Menu Write 12.004 in word form. A. twelve and four B. twelve and four tenths C. twelve and four hundredths D. twelve and four thousandths."— Presentation transcript:

1 Splash Screen

2 Lesson Menu Write 12.004 in word form. A. twelve and four B. twelve and four tenths C. twelve and four hundredths D. twelve and four thousandths

3 Main Idea/Vocabulary Compare and order decimals. Inequality = a math sentence using to show that two quantities are not equal. –Ex. 4.15 > 2.40 Equivalent decimals = decimals that have the same value. –Ex. 0.8 and.80 8/10 or 8 out of 10 80/100 or 80 out of 100

4 Example 1 BASEBALL The table below lists the final winning percents for several American League baseball teams in a recent year. Use > or < to compare New York’s percent with Cleveland’s percent. Compare Decimals

5 Example 1 Method 1 Use place value. Compare Decimals First, line up the decimal points. Then, starting at the left, find the first place the digits differ. Compare the digits. New York:0.594 Cleveland:0.562 Answer: Since 9 > 6, 0.594 > 0.562. New York:0.594 Cleveland:0.562

6 Example 1 Method 2 Use a number line. Numbers to the right are greater than numbers to the left. Since 0.594 is to the right of 0.562, 0.594 > 0.562. Answer: New York had the higher winning percentage. Compare Decimals

7 1.A 2.B Example 1 EXAMS In Mr. Smith’s math class, 29.65% of the students earned a grade of “A” at the end of the semester. In Mrs. Dempsey’s class, 29.85% of the students earned a grade of “A” at the end of the semester. Use > or < to compare the percent in Mr. Smith’s class with the percent in Mrs. Dempsey’s class. A.29.65% < 29.85% B.29.65% > 29.85%

8 Example 2 Order 25, 25.1, 24.36, and 25.03 from least to greatest. Answer: The order from least to greatest is 24.36, 25, 25.03, and 25.1. Order Decimals 25 25.1 24.36 25.03 Next, annex zeros so all numbers have the same final place value. Finally, compare and order using place value. 24.36 25.00 25.03 25.10 First, line up the decimal points. 25.00 25.10 24.36 25.03

9 1.A 2.B 3.C 4.D Example 2 Order 71, 71.04, 70.89, and 71.4 from least to greatest. A.71.4, 71.04, 71, 70.89 B.71.4, 71, 71.04, 70.89 C.70.89, 71.04, 71, 71.4 D.70.89, 71, 71.04, 71.4

10 End of the Lesson

11 Resources Five-Minute ChecK (over Lesson 3–1) Image Bank Math Tools Modeling Decimals Dividing Decimals Modeling Decimals

12 1.A 2.B 3.C 4.D Five Minute Check 1 Write 12.004 in word form. (over Lesson 3-1) A.twelve and four B.twelve and four tenths C.twelve and four hundredths D.twelve and four thousandths

13 1.A 2.B 3.C 4.D Five Minute Check 2 Write 8.37 in word form. A.eight and thirty-seven B.eight and thirty-seven tenths C.eight and thirty-seven hundredths D.eight and thirty-seven thousandths (over Lesson 3-1)

14 1.A 2.B 3.C 4.D Five Minute Check 3 Write forty-eight thousandths in standard form and in expanded form. A.0.048; (4  0.01) + (8  0.001) B.40.008; (4  10) + (8  0.001) C.0.0048; (4  0.001) + (8  0.0001) D.0. 48; (4  0.1) + (8  0.01) (over Lesson 3-1)

15 1.A 2.B 3.C 4.D Five Minute Check 4 Write fourteen and five hundred six thousandths in standard form and expanded form. (over Lesson 3-1) A.14,500.006; (1  10,000) + (4  4,000) + (5  100) + (6  0.006) B.14.506; (1  10) + (4  1) + (5  0.1) + (6  0.001) C.14.0506; (1  10) + (4  1) + (5  0.01) + (6  0.0001) D.0.14506; (1  0.1) + (4  0.01) + (5  0.001) + (6  0.00001)

16 1.A 2.B 3.C 4.D Five Minute Check 5 Daniel purchased a book for seven dollars and eighty-two cents. Write this amount in standard form. A.$782 B.$82.7 C.$7.82 D.$0.782 (over Lesson 3-1)

17 1.A 2.B 3.C 4.D Five Minute Check 6 Julia has sapphire earrings that are eight hundredths of a karat in size. Which decimal represents eight hundredths? A.0.8 B.0.08 C.0.008 D.0.0008 (over Lesson 3-1)

18 End of Custom Shows


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