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Flashcards by Stuart Plaskitt, updated more than 1 year ago
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Created by Stuart Plaskitt
over 6 years ago
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| Question | Answer |
| squared (square) number | the answer to any number, times by itself. E.g. 1x1=1, 2x2=4, 3x3=9, 4x4=16, 5x5=25 |
| square root | a number that can be divided by two equal numbers (i.e. the opposite of a square number) e.g. square root of 25 = 5 because 5x5=25 |
| cube (cubed) number | the answer to a number times itself, then times itself again: e.g. 3x3x3 = 3 cubed = 27 |
| cube root | the opposite to a cube number - find 3 identical numbers that when multiplied, give the original number: e.g. cube root of 125 = 5 (5x5x5=125) |
| prime number | a number that only has 2 factors: 1 and itself. 1 is not a prime number as it does not have two factors |
| composite number | a number larger than 0 that is not prime |
| numerator | the 'top' number in a fraction. The number of parts that we are 'looking at' |
| denominator | the 'bottom' number in a fraction. The number of parts that a whole is broken in to |
| improper fraction | when the numerator is larger than the denominator - the fraction is larger than 1 whole |
| mixed number fraction | 1 or more wholes, and a fraction of a whole: e.g. 3 1/2 |
| dividing fractions | stick, change, flip |
| factor | a number that another number can be divided by which gives a whole number answer |
| multiple | a number that is several 'lots of' another number - e.g. 35 is a multiple of 5 because 5x7 = 35 |
| factor pair | a number that can be divided by two other numbers - e.g. 3 and 4 are a factor pair of 12 because 3x4 = 12 |
| how to divide fractions | stick, change, flip |
| 2 operations that need identical denominators | add and subtract |
| the operation that doesn't need changing when performing a calculation with fractions | multiply |
| prime factors | the number at the bottom of a factor tree - keep finding factor pairs until you can't find any more 12 | 3 x 4 | | prime 2 x 2 |
| common multiple | the number that is a multiple of two numbers: e.g. 12 is a common factor of 3 and 4 3, 6, 9, 12 4, 8, 12 because it is in both their times tables |
| common factor | a factor of two different numbers 4 is a common factor of 12 and 16 factors of 12 = 1, 2, 3, (4), 6, 12 factors of 16 = 1, 2, (4), 8, 16 |
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