Flashcards
Natural Numbers
Cards in this deck (31)
- 1What does N stand for?Natural Numbers
- 2Natural Numbers (N)Also called "counting numbers," the numbers from 1 to infinity
- 3What does W stand for?Whole Numbers
- 4Whole Numbers (W)All of the natural numbers plus zero
- 5What does Z stand for?Integers
- 6Integers (Z)All positive numbers, negative numbers and zero333
- 7What does Q stand for?Rational Numbers
- 8Rational Numbers (Q)A number that can be written as a fraction; cannot have zero in the denominator.
- 9What does I stand for?Irrational Numbers
- 10Irrational Numbers (I)A number that cannot be written as a fraction
- 11What does R stand for?Real Numbers
- 12Real Numbers (R)All rational and irrational numbers
- 13FactorA number that divides another number exactly.
E.g. 4 is a factor of 12. - 14PrimeA number which has exactly two factors. The number one and itself.
- 15MultipleA number which is part of another number's times table.
- 1635 is a multiple of 5.5
- 17LCMStands for 'lowest common multiple'. It is the smallest multiple common to a set of numbers.
- 18The LCM of 3 and 4 is12
- 19HCFStands for 'highest common factor'. It is the largest factor common to a set of numbers.
- 20The HCF of 16 and 24 is8
- 21What is a factor tree used for?A factor tree can be used to find prime factors and any numbers
- 22Prime NumberOnly factors are itself and 1
- 23Square numberThe product when an integer is multiplied by itself.
- 24Square numbers from 0 - 100?0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.
- 25Square roots numberNumber is a value that, when multiplied by itself, gives the number.
Example: 4 × 4 = 16, so a square root of 16 is 4. - 26What is the symbol of a square root√
which always means the positive square root. - 27Find the √28917
- 28What does BIDMAS stand for?Brackets
Indices (powers)
Division
Multiplication
Addition
Subtraction - 29What does BIRDMAS stand for?Brackets
Indices (powers)
Roots
Division
Multiplication
Addition
Subtraction - 30What is meant by the term Rounding numbersto change a number to a more convenient value.
- 31Rounding Rules more than 5 > up less than 5 < downmore than 5 > up
less than 5 < down
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- Junior Certificate Mathematics Flashcards on Natural Numbers, created by Homeschool Covey on 09/05/2021.
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- Homeschool Covey
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