Estimating Products & Quotients Adding & Subtracting Decimals

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Presentation transcript:

Estimating Products & Quotients Adding & Subtracting Decimals Multiplying Decimals & Whole #s Dividing Decimals & Whole #s Vocabulary Estimating Products & Quotients Adding & Subtracting Decimals $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 Final Jeopardy $500 $500 $500 $500

C1 $100 15.63 + 24.36

C1? $100 What is 39.99?

C1 $200 19.86 – 4.94

C1 $200 What is 14.92?

C1 $300 Your current balance balance is $237.80. After writing a check for $29.95, what is your new balance?

C1 $300 What is $207.85?

C1 $400 A hat costs $10.95 and a t-shirt costs $14.20. How much change will you receive, if you pay for both with a $50 bill?

C1 $400 What is $24.85?

The final Jeopardy answer is: C1 final The final Jeopardy answer is: A piggy bank containing only quarters has a mass of 850 grams when empty, and 7,822 grams when filled. If a quarter weighs 5.6 grams, estimate the amount of money inside the piggy bank? Timer

C1 final What is about $300?

C2 $100 Estimate 33.6 x 82.1

C2 $100 What is 30 x 80 = 2,400?

C2 $200 Is the estimation reasonable, yes or no? If no, provide a reasonable estimate. 7.8 x 1.1 x 4.2 = 50

C2 $200 What is NO, because 8 x 1 x 4 = 32?

C2 $300 Estimate 45.8 divided by 23.6

C2 $300 What is 46 divided by 23 = 2?

C2 $400 There are 25 yards of ribbon available, and each kid needs 1.75 yards of ribbon. Estimate the number of children that can participate in this craft activity.

What is 24 divided by 2 = 12 children?

C2 $500 Rewrite the following division problem using compatible numbers, so the quotient is a whole number. 485.87 divided by 71.54

C2 $500 What is 480 divided by 70 = 7?

C3 $100 7 x 0.012

C3 $100 What is .084?

C3 $200 .0198 x 75

C3 $200 What is 1,485?

C3 $300 2.4 x 3.48

C3 $300 What is 8.352?

C3 $400 5.04 x 3.2

C3 $400 What is 16.128?

C3 $500 The grocery store is selling bananas for $.35 per pound. How much will you pay for 3.6 pounds of bananas?

C3 $500 What is $1.26?

C4 $100 118.5 divided by 5

C4 $100 What is 23.7?

C4 $200 336.753 divided by 31

C4 $200 What is 10.9?

C4 $300 .12 divided by .15

C4 $300 What is .8?

C4 $400 13.5 divided by .03

C4 $400 What is 450?

C4 $500 A necklace is being made with beads that are 1.25 centimeters in diameter each. The necklace is 30 centimeters long. How many beads are needed?

C4 $500 What is 24 beads?

C5 $100 Changing a number to a “close” number, in order to multiply or divide mentally.

What are compatible numbers?

The answer to a multiplication problem.

C5 $200 What is a product?

In a division problem, the number that does the dividing. C5 $300 In a division problem, the number that does the dividing.

C5 $300 What is a divisor?

The answer to a division problem. C5 $400 The answer to a division problem.

C5 $400 What is a quotient?

In a division problem, the number that is being divided. C5 $500 In a division problem, the number that is being divided.

C5 $500 What is a dividend?

This Jeopardy game was created by (Mr. Henry) Good luck on your test!