Name:________________________________________________________________________________Date:_____/_____/__________ Brain blitz/ warm-up Get Homework out FIRST! Then, begin warm-up. 1) Convert in order to fill-in the missing parts (REDUCE fractions!): Fraction Decimal Percent 𝟑 𝟏𝟏 0.02 0.5% 2) Compare by placing a > sign or a < sign in the blanks (remember to convert them ALL to decimals first!): 0.5_____ 52% ¾ _____ 0.8 2.9% _____ 0.28 3) Convert the following REPEATING decimal to a percentage: 0.33 = _____% Today’s lesson . . . What: ORDERING RATIONAL NUMBERS Why: To order groups of fractions, decimals, percentages in both ascending and descending order. STRATEGY: Start with the whole #’s, move onto the tenths, etc. REVIEW (ORDERING DECIMALS): When comparing decimal #’s, start with greatest the __________________________ place value digit and compare. If there is a “tie,” move on to the next digit, etc. In other words . . . 1) Compare the whole numbers. 2) If there is a “tie,” move on to the tenths ______________________________ . 3) If there is another “tie,” move on to the hundredths _______________________________. 4) If needed, keep moving on to the next place value digit(s). Examples: Put the following decimal numbers in ascending order: 1.025 1.25 0.039 0.4 1) Answer: 0.039; 0.4; 1.025; 1.25 0.0055 0.2 0.015 0.15 2) Answer: 0.0055; 0.015; 0.15; 0.2 0.75 0.425 0.9 0.45 3) Answer: 0.425 ; 0.45; 0.75; 0.9 STRATEGY: Convert everything into decimals first! Put the following numbers in ascending (least to great) order: # Frac. Decimal % 1. 1/ 8 0.0255 13% Answer (List in Original Form): 1) 0.0255 Decimal Version 2) 1/8 2. 3) 13% 1¾ 1.755 1.7% 1) 0.017 Decimal Version 2) 1 ¾ 3) 1.755 On Your own: 3. ¼ 0.3 20% 1) 20% 2) ¼ 3) 0.3 Place the decimals from #3 (above) on the below number line: Tenths of course!! Put the following numbers in descending (greatest to least) order: # Frac. Decimal % 1. 2/ 0.45 40.5% 5 Answer (List in Original Form): 1) 0.45 2) 40.5% 3) 2/5 2. 2/ 3 0.6 66% 1) 2/3 2) 66% 3) 0.6 Word Problems: 1. Amanda, Bill, and Max went running. Amanda ran 3.2 miles, Bill ran 3 2/5 miles, and Max ran 3.15 miles . Who ran the least amount of distance? Max ran the least amount of distance. 2. At Simpson Middle School, the 6th graders are absent 1/8 of the time, the 7th graders are absent 0.1 of the time, and 8th graders are absent 13.5% of the time. Which grade is absent the most? The 8th graders are absent the most! END OF LESSON The next slides are student copies of the notes for this lesson. These notes were handed out in class and filled-in as the lesson progressed. NOTE: The last slide(s) in any lesson slideshow (entitled “Practice Work”) represent the homework assigned for that day. Math-7 NOTES NAME: DATE: ______/_______/_______ What: ORDERING RATIONAL NUMBERS Why: To order groups of fractions, decimals, and %’s in both ascending and descending order. STRATEGY: Start with the whole #’s, move onto the tenths, etc. REVIEW (ORDERING DECIMALS): When comparing decimal #’s, start with the __________________________ place value digit and compare. If there is a “tie,” move on to the next digit, etc. In other words . . . 1) 2) 3) 4) Compare the whole numbers. If there is a “tie,” move on to the ______________________________ . If there is another “tie,” move on to the ___________________________. If needed, keep moving on to the next place value digit(s). Examples: Put the following decimal numbers in ascending order: 1.025 1) 0.4 0.2 0.015 0.15 0.425 0.9 0.45 Answer: 0.75 3) 0.039 Answer: 0.0055 2) 1.25 Answer: STRATEGY: Convert everything into decimals first! Put the following numbers in ascending (least to great) order: # Decimal % 1/ 8 0.0255 13% 1¾ 1.755 1.7% ¼ 0.3 20% Answer (List in Original Form): Decimal Version 1. Frac. Decimal Version 2. Decimal Version 3. Place the decimals from #3 (above) on the below number line: Put the following numbers in descending (greatest to least) order: # Decimal % 2/ 5 0.45 40.5% 2/ 3 0.6 66% Answer (List in Original Form): Decimal Version 1. Frac. Decimal Version 2. Word Problems: 1. Amanda, Bill, and Max went running. Amanda ran 3.2 miles, Bill ran 3 2/5 miles, and Max ran 3.15 miles . Who ran the least amount of distance? 2. At Simpson Middle School, the 6th graders are absent 1/8 of the time, the 7th graders are absent 0.1 of the time, and 8th graders are absent 13.5% of the time. Which grade is absent the most? NAME:________________________________________________________________________________DATE: _____/_____/__________ Homework/practice “Ordering Rational Numbers” Order the following from least to greatest (ascending): # Fraction Decimal % 1. 4/ 5 0.08 80.5% 2. 1/ 3 0.34 33% 3. 41/4 4.3 42.5% Answer (List in Original Form): Order the following from to greatest to least (descending): # Fraction Decimal % 4. ¼ 0.025 2% 5. 5/ 0.83 8.3% 6. 14/ 0.0975 8.75% 6 16 Answer (List in Original Form): . . . continued SOL PREP . . . 1) 2) 3) 4) Lucy spends 19 of her allowance on clothes. 25 What percent of her allowance does she spend on clothes? Which group shows equivalent fractions, decimals, and percents? A county sales tax is 5.5%. What is the decimal for this sales tax? Which group is in order from least to greatest? A. 19% B. 19.25% C. 38% D. 76% A. 7 10 B. 1 8 , 0.18, 18% C. 2 5 , 0.4, 40% D. 3 8 , 0.375, 375% A. 0.0055 B. 0.055 C. 0.55 D. 5.5 A. ¼ , 0.2, 2.5% B. 0.2, ¼ , 2.5% C. 2.5%, 0.2, ¼ D. 2.5%, ¼ , 0.2 , 0.7, 7% 5) Circle EACH of the choices that represent 50% : 5.0 6) 10 20 0.5 5 100 1 2 2 10 2% Circle each of the choices that represent 0.2 : 1 5 1 2 20%