Order of Operations and Number Systems

90 - 5² × 3

• 15
• 240
• 195

Find and explain the error.    
 5 - 3 + 2
     5 - 5
        0

• There is no error.
• Addition was done first and you should have subtracted first
• There is a subtraction error

2x + 5(y - 1) when x=8 and y=5

• 20
• 31
• 36
• -4

Solve 1(-7 + 2 (3+2) - 5)²

• 9
• 5
• 4
• 6

Solve 8+ (5)(4) - (6+10-2) + 44

• 42
• 58
• 71
• numbers

Solve 7 + 3 x 5

• 22
• 50
• 735

Solve 1(-7 + 2 (3+2) - 5)²

• 9
• 5
• 4
• 6

When is the whale watch?

• Thursday January 19th
• When the Whales come
• cupcakes
• Uhhh land shark!

Which answer is correct?

• a
• b

What is the first operation you need to perform in the problem shown?

• addition
• subtraction
• parenthesis
• exponents