Even and Odd
Step what?
Evaluate
Simplify
Prime and Composite
100
True or false, all odd numbers are prime.
False
100
What is the first step in this equation?
9 - 3 x 2=12
3 x 2
100
3 + 4 x 5
23
100
14 - 2 x 7
0
100
Name all the factors of 27
1, 3, 9, 27
200
Which of the following models shows an odd number?
Group 1
200
Give the correct order of operations.
Parentheses, Exponents, Multiplication OR Division, Addition OR Subtraction
200
7 + (2 x 4) - 1
14
200
6(15-8)-10+3
35
200
Which rectangle has a prime number of tiles?
the second one, 
300
Will the sum of these two groups be even or odd?
Even
even + even = even
300
Why is it important to know GEMDAS as a mathematician?
So everyone can solve the problem the same way.
300
10 - 6 ÷ 2 + 3 * 5
22
300
5 + 14 ÷ 2 × 5
40
300
Which statements are true?
1- A prime number has exactly two factors.
2- All odd numbers are prime.
3- All even numbers are composite.
4- A composite number has more than two factors.
5- A prime number has more than two factors.
1- A prime number has exactly two factors.
4- A composite number has more than two factors.
400
True or false, the difference between two odd numbers is odd.
False
odd - odd = even
400
What is the final step in the following equation?
27 ÷ 3 x 6 - 8 + 12 x 3
You should add in the final step
400
20 – (5+3) x 2 + 4
8
400
15 - 5 + 4 * (6 + 3 * 2)
58
400
Which numbers are prime?
21, 3, 18, 51, 2, 17, 6, 91
3, 2, 17,
500
Ms. Goad sorted her numbers into even and odd groups.
Group A: 19, 41, 87, 93
Group B: 34, 46, 60, 72
Which number should go with group A?
98, 17, 58, 26
17
Group A has odd numbers, 17 has an odd number in the one's place so it is odd.
500
When simplifying, using order of operations, which operation should be performed second?
10 - 6 ÷ 2 + 3 × 5
3 × 5, using GEMDAS we know that we would do the division first because it comes first in the equation.
500
(5 x 4) – 6 ÷ 2 + 9
26
500
(75 - 9) ÷ 3 * 4 + 17
105
500
Which set of numbers contains two composite numbers and one prime numbers?
A- 12, 31, 91
B- 1, 5, 40
C- 55, 24, 12
D- 53, 41, 19
A- 12, 31, 91