Algebra 1 Pretest Unit 1

4  $-$  3  $+$ 2 + 5 $\cdot$ 3

• 40

• 17

• 24

• 18

 $5^2-10\div2\times4$  

• 4

• 5

• 80

• 160

What is the first operation used in solving this problem:

2 ⋅ (3 + 8 ÷ 4)²

• multiplication

• addition

• division

• subtraction

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

Why is Order of Operations important?

• It's not important, I can solve in any order I want to and get the correct answer..

• Without order of operations there would not be one correct answer.

• What is Order of Operations?

• You have to do parentheses, exponent, multiplication then division, and addition then subtraction... just the way it is.

Check all classifications for the number: -34

• Natural Number

• Whole Number

• Integers

• Rational Number

• Irrational Number

Check all classifications for the number: 0

• Natural Number

• Whole Number

• Integers

• Rational Number

• Irrational Number

True or False: All Natural Numbers are Whole Numbers

• True

• False

True or False: All Integers are Whole Numbers

• True

• False

Which one of these Integers is also a Natural Numbers?

• 5

• 0

• -5