Math for livy Flashcards
1
Q
What is the range?
A
The biggest number in a sequence take away the smallest number in the sequence.
2
Q
What is the mean?
A
All the numbers added together divided by the amount of numbers there are.
3
Q
What is the median
A
The middle number of a sequence , e.g 1 4 8 9 15 17, the median would be 8.5, but if you had 3 6 9 , the median would be 6
4
Q
What is rounding to one significant figure ?
A
When you round to the first number between 1 and 10, as an example 9325 would be 9000
5
Q
What is ordinary form
A
When a number is set out normally e.g 500
6
Q
What is standard form
A
When a number is put into powers of 10, e.g 500= 5 x 10 to the power of 2
7
Q
Solve for x
3x + (5 x 3) -2=19
A
x=2
8
Q
What is 10 to the power of 0
A
1
9
Q
What is 9785 rounded to the 2nd most significant number?
A
9800
