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9 Cards in this Set
- Front
- Back
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a × b = c |
Factor × factor = product |
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Radius, diameter, chord |
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a ÷ b = c |
Dividend or numerator ÷ divisor or denominator = quotent |
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What is reciprocal fraction? |
Inversed initial fraction |
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Divisibility rule for 3 |
Sum up the digits and see if the result is divisible by 3 |
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Divisibility rule for 4 |
If the last two digits are divisible by 4 |
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Formula for circumference |
2 ×pi × r or pi × d |
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How do you know if the year is a leap year? |
If the year is divisible by 4 |
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What is the formula to calculate the area of triangle? |
h × b ÷ 2 |
