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$100 Algebraic Expressions Circumference Area of a Circle Pan-Balance Problems Miscellaneous $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Review Jeopardy

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Which of the following is an algebraic expression? 9 + 6 n + 2 = 8 5 + n

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Chloe collected 10 more cans than Tammy. Write an algebraic expression for the number of cans Tammy collected. C - 10

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Becky is 15 pounds less than Greg. Write an algebraic expression for how much Greg weighs. B + 15

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Jamie has half as many cookies as her sister Meg. Write an algebraic expression that shows how many cookies Jamie has. ½ x M M ÷ 2 m/2

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8h Steve earns $8 an hour. Write an algebraic expression that shows how much money he makes in h hours.

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What is the formula for finding the circumference of a circle? C = π x d or C = 2 x r x π

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What is circumference? Circumference is the distance around a circle (a circle’s perimeter).

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What is the circumference of a circle that has a diameter of 5 ft.? Round to the nearest hundredth. 15.70 ft.

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What is the circumference of a circle that has a radius of 4 in.? Round to the nearest hundredth. 25.12 in.

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What is the circumference of a circle that has a radius of 12 cm.? Round to the nearest hundredth. 75.36 cm.

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What is the formula for finding the area of a circle? A = π x r²

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What is the area of a circle that has a radius of 15cm.? Round to the nearest hundredth. 706.50 cm²

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What is the area of a circle that has a radius of 8in.? Round to the nearest hundredth. 200.96 in²

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What is the area of a circle that has a diameter of 10 in.? Round to the nearest hundredth. 78.50 in²

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What is the area of a circle that has an radius of 7 cm? Round to the nearest hundredth. 153.86 cm²

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One cube weighs as much as how many marbles? 11 marbles

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One cube weighs as much as how many oranges? 3.5 oranges

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One block weighs as much as how many marbles? 3 marbles

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One block weighs as much as how many marbles? 2 marbles

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Using the two pan-balances, solve the problems below. 1 coin = 2 clips 1 block = 4 clips

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The wheels on Will’s bicycle have a diameter of 25 inches. About how far will he travel if the wheels go around exactly once? 78.50 inches 50% 5%

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What is the difference between an algebraic expression and an algebraic equation? Both contain variables, but the algebraic equation contains an equals sign. 5%

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Complete the “in” and “out” table. Left column: 5 Right column: 28, 56, 84, 154

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For the following situation, would you need to find the circumference, perimeter, or area? Jana needs to decide how much fence to buy to surround her rectangular garden. perimeter

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Matt wrote an equation but covered one number. What is the covered number? 10 + 7 = ? + 13 4

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FINAL JEOPARDY ?

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Enter Question Enter Answer

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Area and Circumference of Circles

Area and Circumference of Circles

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