How to play Add/Subtract (96-card deck) Card has two wheels and a target number. Pick the wheel that makes the target number using addition and subtraction only. Use all numbers on the wheel, but use each number only once. 1 Dot cards are solved in a one-step operation. 2 Dot and 3 Dot cards require two-step problem solving.

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How to play Factors (96-card deck) Each card shows two numbers from the multiplication table. Find a common number that can be divided evenly into both numbers on the card. Connect cards that have common factors into many different patterns—great group activity. Factor Wheels are made by placing four cards together to create a wheel of numbers that share a common factor.

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How to play Multiply/Divide (96-card deck) Each card has two wheels and a target number. Pick the wheel that makes the target number.You can add, subtract, multiply and divide. Use all numbers on the wheel, but use each number only once. 1 Dot cards are solved in a one-step operation. 2 Dot and 3 Dot cards require two-step problem solving.

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How to play Double Digits (96-card deck) Object of the game is to make 24. You can add, subtract, multiply and divide. Use all four numbers on a card, but use each number only once. There is at least one solution to every card. Three levels of challenge.

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How to play Single Digits (96-card deck) Object of the game is to make 24. You can add, subtract, multiply and divide. Use all four numbers on a card, but use each number only once. There is at least one solution to every card. Three levels of challenge.

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How to play Algebra (96-card deck) Find a value for x and/or y (any whole number from 1 to 9) which, when used together with the other numbers on the card, makes 24. Add, subtract, multiply and divide. Use all four numbers (or number equivalent of algebraic notation), but use each number only once. Three levels of challenge

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How to play Fractions/Decimals (96-card deck) The Fractions/Decimals edition plays just like the original Single Digits edition. Object of the game is to make 24. You can add, subtract, multiply and divide. Use all four numbers on a card, but use each number only once. There is at least one solution to every card. Three levels of challenge.

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How to play Integers (96-card deck) Object of the game is to make a positive number 24. You can add, subtract, multiply and divide. Use all four numbers on a card, but use each number only once. For added challenge, solve for negative 24. All cards can make both 24 and –24. Three levels of challenge.

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How to play Variables (96-card deck) Find a “variable number” (any whole number from 1 to 9) which, when used with the three numbers on one wheel makes 24, and also makes 24 with the three numbers on the other wheel. For added challenge, place two cards together (four wheels.)

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