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 Number Play 26 Flashcards |
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What does the property of parity refer to? |
Card: 1 / 26 |
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 The property of a number being either even or odd. |
Card: 2 / 26 |
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True or False: The sum of two odd numbers is always odd. |
Card: 3 / 26 |
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False. The sum of two odd numbers is always even.
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Card: 4 / 26 |
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Riddle: I can be grouped in pairs with no leftovers. I am 2, 4, 6, and more. What am I? |
Card: 5 / 26 |
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Even numbers |
Card: 6 / 26 |
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The nth odd number can be expressed by the formula ______. |
Card: 7 / 26 |
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2n - 1 |
Card: 8 / 26 |
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Which of the following sums is impossible with 5 odd numbers? A) 25 B) 30 C) 35 D) 40 |
Card: 9 / 26 |
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B) 30 |
Card: 10 / 26 |
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How many squares are in a 3 × 4 grid? |
Card: 11 / 26 |
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 12 squares |
Card: 12 / 26 |
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Riddle: I am a grid where every row, column, and diagonal sums to the same total. What am I? |
Card: 13 / 26 |
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 A magic square |
Card: 14 / 26 |
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The total sum of numbers from 1 to 9 is ______. |
Card: 15 / 26 |
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45 |
Card: 16 / 26 |
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If the middle number of a magic square is m, the sum of the rows equals ______. |
Card: 17 / 26 |
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3m |
Card: 18 / 26 |
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In the Fibonacci sequence, the next number is found by ______. |
Card: 19 / 26 |
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 Adding the two previous numbers. |
Card: 20 / 26 |
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Which ancient culture first recorded a magic square? |
Card: 21 / 26 |
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 China |
Card: 22 / 26 |
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Fill in the blank: The first recorded 4 × 4 magic square is called ______. |
Card: 23 / 26 |
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 Chautīśā Yantra |
Card: 24 / 26 |
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What is the magic sum of the Kubera Yantra magic square? |
Card: 25 / 26 |
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 72 |
Card: 26 / 26 |
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