Vocabulary
What are the 4 operations?
Addition, Subtraction, Multiplication, Division
2 is an even number.
TRUE!
Solve: 20+8-5x3
Answer: 13
What is the pattern?
10,12,14,16
Counting by 2s, adding 2.
What is a pattern?
1,693 is an even number.
FALSE! It is odd because 1,693 ends in a 3.
Solve: 4+2x6/2
/ stands for division
Answer: 10
What is the pattern?
3,7,11,15,19
Adding 4 to each number
What is an even number?
A number that ends in 0, 2, 4, 6 or 8.
With number patterns, you can only add between numbers.
Solve: 28+6x4/3
/ stands for division
Answer: 36
What is the pattern?
40, 37, 34, 31, 28
Subtract by 3
What is an odd number?
A number that ends in 1, 3, 5, 7 or 9.
When using order of operations, you have to add first.
FALSE! You multiply first.
Solve: 8-2+9x4/6
/ stands for division
Answer: 0
What is the pattern?
80, 65, 50, 35, 20
Subtract by 15
What are order of operations?
The order of multiplication, division, addition and subtraction in order to find the answer.
The order for Order of Operations is: Multiply, Divide, Add, and Subtract.
TRUE!
Solve: 27+18/3x2-19
/ stands for division
Answer: 11
When we count by 5s, what pattern do you notice in the numbers?
Example: 20, 25, 30, 25