CHAPTER 8 REVIEW Intro to Decimals

PLACE VALUE COMPARING DECIMALS WRITTEN AS A FRACTION 200 400 600 800 1000 Double Jeopardy

PV 200 The place value to the immediate right of the decimal point. BOARD

PV 400 The place value represented by a fraction with 1000 in the denominator. BOARD

PV 600 In .275, it is how many thousandths there are. BOARD

PV 800 In .812, it is the value of the digit 1. BOARD

PV 1000 This term means that .3 = .300 (aka these decimals are ___) BOARD

CD 200 2.875 ___ 2.815 BOARD

CD 400 123.45 ___ 12.345 BOARD

CD 600 2.112 ____ 2.112 BOARD

CD 800 3.367 ___ 3.037 BOARD

CD 1000 DAILY DOUBLE

CD 1000 Write a decimal that is less than 3.065 but greater than 3.050 BOARD

WF 200 .650 BOARD

WF 400 .932 BOARD

WF 600 Twenty hundredths BOARD

WF 800 5.627 BOARD

Six and three hundred twenty four thousandths WF 1000 Six and three hundred twenty four thousandths BOARD

WRITE THE DECIMAL ORDERING DECIMALS ROUNDING DECIMALS 400 800 1200 1600 2000 Final Jeopardy

D 400 5/100 Board

D 800 325/1000 Board

D 1200 6872/1000 Board

D 1600 DAILY DOUBLE

D 1600 5/2 written to three decimal places Board

D 2000 174/500 Board

Order 400 From least to greatest: 5.2, 5.25, 5.02 Board

Order 800 From least to greatest: .058, .508, .558 Board

Order 1200 From greatest to least: 6.307, 3.307, 6.337 Board

Order 1600 From greatest to least: 7.620, 7.621, 7.622 Board

Order 2000 Name one decimal between 0.095 and .105. Board

R 400 Round to the nearest hundredth: 6.785 Board

R 800 Round to the nearest tenth 2.873 Board

R 1200 Round to the nearest hundredth. 3.134 Board

R 1600 Name one decimal that can round to 2.35. Multiple team buzz in Board

E 2000 What is the smallest possible decimal that can round to 4.91? Board

FINAL JEOPARDY

FINAL JEOPARDY Risk only as much as you have. Category will be revealed momentarily. Risks will be collected after the category is revealed. You have 30 seconds to answer the question, absolutely no more time.

FINAL JEOPARDY ROUNDING DECIMALS

FINAL JEOPARDY Question on the next slide.

FINAL JEOPARDY What are the greatest and smallest possible decimals that can round to provide the following decimal? Your answers must be given with three decimal places. 3.5

FINAL JEOPARDY What are the greatest and smallest possible decimals that can round to provide the following decimal? Your answers must be given with three decimal places. 3.5

The Answer Here’s how to solve it:

The Answer Find the biggest and smallest numbers that round to 3.5 using three decimal places. We know that one number must be less and one must be greater than 3.5. I know that 3.4__ can round up to 3.5 if there is a five or more in the hundredths place. I add the zero to get 3 places and because that makes my number the smallest it can be… 3.450. I know that 3.5__ rounds down if there is a four or less. Four is the biggest possible number that allows me to round down. Therefore 3.54__; the number in the thousandths place doesn’t matter on the rounding BUT the biggest number will be 3.549.