Integers
Which of the following is an integer: 1.2, -3, 4/5
-3
What is Ms. Poetschka's abbreviation for the order of operations?
BOMDAS
Round 435.325 to two decimal places.
435.33
3/5*2/15
6/30 = 2/10
Simplify the following ratio:
4:12
1:3
Give one real world example where an integer can be used
Temperature, Game Score, Sports Teams, Coins (not money in general), etc.
T/F: Multiplication MUST be done before division
False
Round 3451 to two significant figures.
3500
5/9/10/3
15/90 = 1/6
What is an irrational number? give an example.
A number that cannot be expressed as a ratio of integers. e.g. pi
Give an example of an integer
Answers can vary... Ms. Poetschka will check
What do you do first in this problem:
[4 - 20 x 2] / 5
20 * 2
Round 134.997 to two decimal places.
135.00
2/10+9/10
11/10 = 1 1/10
What is a rational number? give an example.
A number that can be expressed as a fraction. e.g. 0.5
Define an integer
is a number that can be written without a fractional component
Evaluate the expression:
[(5) - 20 x 2] / 5
-7
Round 0.004568 to two significant figures.
0.0046
2/9+1/8
25/72
What is the highest common factor of 20 and 8?
4
What is the difference between prime and composite numbers? give an example of each.
Prime: can only be divided by itself and 1. e.g. 37
Composite: has more than two factors. e.g. 10
Evaluate the expression:
(5 + 4) x [ (8 x 2) / -4]
-36
Round 980789 to three significant figures.
981000
1/3-2/9
3/27 = 1/9
What is the lowest common multiple of 5 and 9?
45