Place Value Large Exponents Rounding Estimation Numbers not

Place Value Large Exponents Rounding Estimation Numbers (not on test) $100 $100 $200 $200 $300 $300 $400 $400 $500 $500

C 1 final FINAL JEOPARDY Explain how to solve the problem below using complete sentences. Martha is on her way to the mall to buy some new school clothes. She has $100. 00 in her purse. Martha wants to buy sneakers for gym class that cost $85. 23, she also wants a new shirt for the first day of school that costs $14. 66. What should she do to decide if she has enough money? Should she round each price or should she estimate? Give an approximate answer.

C 1 final Answer to Final Jeopardy

C 1 $100 The eight is in the ______ place? 27, 645. 81

C 1 $100 Tenths place

C 1 $200 In your own words what is the definition of Place Value?

C 1 $200 A digit in a specific location of a number

C 1 $300 27, 645. 8152 The 2 is in the ______ place.

C 1 $300 27, 645. 8152 The 2 is in the ten thousandths place.

C 1 $400 What is the place value of each yellow number? 20, 123, 642, 000. 7

C 1 $400 0 billions 3 millions

C 1 $500 Create a number that includes a number in the hundred millions & read it.

C 1 $500 100, 000

C 2 $100 6² What is the base number? What is the exponent?

C 2 $100 Base number – 6 Exponent - ²

C 2 $200 3● 3● 3 Is equivalent to what?

C 2 $200 3 ³ OR 27

C 2 $300 9² When solving using ___________, it looks like this: 9● 9

9² When solving using repeated multiplication it looks like this: 9● 9 C 2 $300

C 2 $400 Solve: 3º

C 2 $400 3º= 1

C 2 $500 Which answer is greater, 7² or 2� to th the 7 power? Explain

C 3 $100 In your own words what is the definition of rounding?

C 3 $100 An approximate answer, the specific place value is given.

C 3 $200 Round to the nearest ones place. - How do you know, besides the fact that is says round, that this question is asking to round?

C 3 $200 The question is asking to round to a specific place value.

C 3 $300 Round to the nearest hundredth. 254. 17389

C 3 $300 254. 17000 OR 254. 17

C 3 $400 TRUE OR FALSE…. . when 23. 897 rounded to the nearest whole number is 20 EXPLAIN!

C 3 $400 FALSE- whole number is another way of saying round to the ones place. 24

C 3 $500 After looking at rounding and estimation would you say they are more similar or different? Give at least 2 examples to support answer.

Similar Different • Don’t get an • Estimation is exact answer easier numbers to • Number work with changes • Rounding is • 5 or greater more round up, accurate and less than 5 gives you a round down specific place value C 3 $500

C 4 $100 In your own words what is the definition of estimation?

C 4 $100 An approximate answer that uses “easier” numbers that are close in value.

C 4 $200 Estimate 23. 2 ● 3. 5

C 4 $200 Possible Answers: 23 ● 4 = 92 20 ● 4 = 80

C 4 $300 Estimate 346 ÷ 72

C 4 $300 350 ÷ 70 =5

C 4 $400 Estimate: 24. 1234 – 6. 54= 12. 533 + 5. 431=

C 4 $400 Possible Answers: 20 -7=13, 24 -6=18 12+5=17, 10+5=15

C 4 $500 Which is more accurate rounding or estimation? Explain your answer in a complete sentence.

Rounding is more accurate because you are asked to round to a specific place value. Estimation is a number close in value but easier to solve. C 4 $500