Prime or Composite
List the first 5 prime numbers
2,3,5,7,13
What is the number one rule for ADDING or SUBTRACTING decimals?
When adding or subtracting decimals, the decimal has to line up.
3/4 +2/9
35/36
What is the order for solving an order of operations problem?
Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction
Formula for Area of a Triangle
Base x Height/2
How do you know if a number is Prime or Composite?
Numbers that are composite have more than two factors.
Numbers that are Prime only have the factors 1 and itself
In a multiplication problem, how do you know where to put your decimal in the answer. Example: 276.23 x .5
Count the number of digits to the right of the decimal. Start at the end of your answer and count that many spaces to the left.
2 3/4 - 1 7/8
7/8
How do you know whether to multiply or divide first when solving a problem doing Order of Operations?
Formula to find area of a rectangle
Length x Width
Is the number 47 prime or composite?
Prime
What does Mrs. Hutson always say when working with decimals. It is easier to think of decimals as what?
Money
Multiply 6/8 x 5/6 and simplify to lowest terms
5/8
Solve
[{8x6+5-3}] - (15 x 2)
20
Formula for finding Volume
Length x Width x Height
What is the GCF of the prime numbers L and P
If L and P are both prime then the only common factor is 1.
Solve 782.35 x .8
625.88
What is the number one rule when adding or subtracting fractions?
Find a common denominator
The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong. Fix my mistake.
I solved left to right instead of using PEMDAS.
Answer is 13
I have a base of 9 in and my height is 4 in. My area is 1/2 of the total. What is my shape?
Triangle
Is the number 67 prime or composite
Prime
Solve: 835.20 -72.4
762.80
What is the rule for dividing fractions?
Then solve 4/5 divided by 1/4
Keep Change Flip
3 1/5
Why is it important to know PEMDAS
So everyone solves the problems the same way and gets the same answer.
I am a rectangle and my area is 108 sq inches. My length is 12. What is my width?
9