Lesson 1 Intro to Integers and Rational Numbers

What is an integer?

• numbers from 1 and up

• counting numbers plus zero

• both positive and negative whole numbers

• positive and negative numbers including fractions and decimals

What is a rational number?

• numbers from 1 and up

• counting numbers plus zero

• both positive and negative whole numbers

• positive and negative numbers including fractions and decimals

Which of the following is an integer? (There is more than one answer)

• 2

• 0

• - $\frac{3}{4}$

• -2

Which of the following is a rational number? (There is more than one answer)

• 2

• 0

• - $\frac{3}{4}$

• -2

What is the opposite of -5?

• $\frac{1}{5}$

• 5

• -2.5

• $-\frac{1}{5}$

What is the opposite of 10?

• -10

• 5

• -5

• 0

What is the best way to describe 0?

• negative

• neutral

• counting number

• positive

Where would you mark the opposite of a number on a number line?

• The same distance from zero, but in the same direction.

• The same distance from zero, but in the opposite direction.

• A different distance from zero, but in the opposite direction.

• A different distance from zero, but in the same direction.

Where would the opposite of 10 be on a vertical number line?

• 10 spaces up from zero

• 10 spaces down from zero

• 10 spaces to the right of zero

• 10 spaces to the left of zero

Where would the opposite of 10 be on a horizontal number line?

• 10 spaces up from zero

• 10 spaces down from zero

• 10 spaces to the right of zero

• 10 spaces to the left of zero