TOOLBOX#2: 1.2 ESTIMATING WITH WHOLE NUMBERS By: Miss McKeown.

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TOOLBOX#2: 1.2 ESTIMATING WITH WHOLE NUMBERS By: Miss McKeown

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. Do Now: The six waterfalls are listed below: WaterfallCountryHeight (ft) AngelVenezuela3,212 MongefossenNorway2,540 Ostre Mandola FossNorway2,152 TugelaSouth Africa2,800 UtigordNorway2,625 YosemiteUnited States2,425 Which of the following is NOT supported by the data? A.The highest waterfall is Angel. B.The lowest waterfall is in Norway. C.The heights are in order from greatest to least. D.Three of the world’s highest waterfalls are in Norway.

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. You are planning a day out where you will be spending money. You know you are going to see movie with your friends and going to the mall after the movies. You have a certain amount of money with you. If you have $40 to spend, estimate if you have enough to buy your $7 movie ticket, a pair of jeans for $22 and a shirt for $11.

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. Estimate the amount of items in each of the three jars. Write 2-3 sentences explaining how you made your educated guess. Jelly Beans Skittles M&M’s

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. Why do you estimate? How do you use estimation?

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. How can I find the sum of through estimation?

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. Estimate. First round each number to the nearest tenth – 32 – 41

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. Estimate ÷ ÷ ÷ ÷ 9

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. Estimate ÷ ÷ x ÷ 52

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. You have 342 cards for a strategy game. To play the game you need about 12 cards. About how many different people can play using your set of cards?

AIM: ESTIMATE WITH WHOLE NUMBERS BY ROUNDING AND USING COMPATIBLE NUMBERS. EXIT TICKET 1.In a division problem, are 60 and 6 compatible numbers? Explain. 2.A classmate estimated that is about , or 100. Explain your classmate’s error. Rate Yourself: 1 indicating you still need help understanding our classroom rules and procedures. 4 means that you are a master and can explain our classroom rules and procedures to Mr. Zilinski