Number Classification
The number "1" belongs to what number family?
Natural or Counting Numbers
1, 2, 3, 4, 5, 6, 7,... are what category of Real Numbers?
Natural or Counting Numbers
1/5 + 2/5 =
3/5
1.2 + 2.3 =
3.5
What are the four operations used in math?
Addition, Subtraction, Multiplication and Division
The number "-2" belongs to what number family?
Integers
0, 1, 2, 3, 4, 5, 6, 7,... are what category of Real Numbers?
Whole Numbers
6/7 - 3/7 =
3/7
3.2 - 1.8 =
1.4
What does "BIDMAS" stand for?
brackets, indices, division, multiplication, addition and subtraction
The number "4/5" belongs to what number family?
Fractions
-3,-2,-1, 0, 1, 2, 3, 4,... are what category of Real Numbers?
Integers
1/2 x 1/5 =
1/10
1.5 x 4
6
Where do the natural numbers come from?
Babylonia (1 - 9) or Ancient Egypt (10 and above)
The number ".8" belongs to what number family?
Decimals
4/5, .8, 56% are what category of Real Numbers?
Rational Numbers
1/2 ÷ 1/5 =
5/2
3.5 ÷ 7
0.5
What is the top number in a fraction called?
ex: the 1 in 1/4
Numerator
The number "3.1456782934502928475660211..." belongs to what number family?
Irrational Numbers
√2 and pi (π) are in what category of Real Numbers?
Irrational Numbers
A number where the numerator is larger than the denominator is called what? ex: 22/7
Improper Fraction
1.3 + 2.4 x 0.5 - 1.1 =
1.4
What is the bottom number in a fraction called?
ex: the 4 in 1/4
Denominator