The positive integers (whole numbers) 1, 2, 3, etc.,
What is a Natural Number
100
9(2x+5)+10
What is 18x+55?
100
18+y=50
What is 32?
200
5x-4y+9x+12y
What is 14x+8y
200
8(x+2)+19
What is 8x+35?
200
The numbers {0, 1, 2, 3, ...} etc.
There is no fractional or decimal part. And no negatives.
What is Whole Numbers?
200
m(9m+2)+7
What is 9m^2 +2m +7?
200
45/x+4= 13
What is 5?
300
8m+y-4m^2+6y
What is -4m^2+8m+7y
300
2(6j+8g)+4(6h+8a)
What is (12j+16g)+(24h+32a)
300
A number with no fractional part.
• the counting numbers {1, 2, 3, ...},
• zero {0},
• and the negative of the counting numbers {-1, -2, -3, ...}
Examples (-16, -7, 0, 1, 2, 987)
What is Integers?
300
2x(x+3)+5x^3
What is 5x^3+2x^2+6x?
300
7x+4x=110
What is 10?
400
(7z^2+4z+8)+(8z^2+6z+2)
What is 15z^2+10z+10?
400
x(x+y)
What is x^2+xy?
400
a real number that can be written as a simple fraction (i.e. as a ratio). Can have repeating decimals.
Examples include: 3/2, 18/4, -8/2, -7, 67, 0.333333......
What are rational numbers?
400
7(4x+7y)+ 2(2x+6y)
What is 32x+61y?
400
12x-8x+4x= 32
What is 4?
500
2j+4j-7g-9g+7r-5a+2d-7r
What is 6j-16g-5a+2d
500
DOUBLE JEOPARDY
What is 12x^2+54xy?
500
a real number that cannot be written as a simple fraction. Endless non-repeating decimals.