Order of Operations
Input/Output
Patterns
Composite/Prime
Expressions
100
True or False: You should always add before subtracting.
False- if both adding and subtracting are in the problem, work left to right.
100
What is the rule?
Add 2
100
What is missing?
20, 40, ___, 80
20, 40, 60, 80
100
Which of these are composite numbers:
15, 7, 11, 20
Which of these are composite numbers:
15, 7, 11, 20
100
Write a number expression for this:
There were 4 cats and then some more (c) came.
There were 4 cats and then some more (c) came.
4 + c
200
Which operation should you do first?
3 + 4 - 1 + 2 - 6 ÷ 6
Which operation should you do first?
3 + 4 - 1 + 2 - 6 ÷ 6
200
What is the rule?
Add 8
200
Find the missing number:
12, 22, ___, 42
Find the missing number:
12, 22, _32, 42
200
Which of these are prime numbers?
100, 19, 12, 7
Which of these are prime numbers?
100, 19, 12, 7
200
Write an number expression for this:
Tina has some worms (w) and Sally ate 9 of them.
Tina has some worms (w) and Sally ate 9 of them.
w - 9