Positive and Negative Numbers

Positive and Negative Numbers

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Is it positive or negative?

• Positive numbers have no sign in front

• Numbers with no signs are understood to be positive

• Negative numbers have a (-) sign in front of the number.

Open Ended

How can you tell if a number is positive or negative?

Multiple Select

Check all the numbers that are negative

• 4565

• -12

• 845

• -1253

• -88751

Numbers on the Number Line

• The left side of 0 is negative

• The right side of 0 is positive

• As number increase, they move towards the right

• As numbers decrease, they move towards the left

Open Ended

How do you know if a number is increasing or decreasing on a number line?

Which number is bigger?

• Just like with positives, negative numbers are bigger and smaller than others.

• All negative numbers are smaller than positive numbers and 0

• Negative numbers are opposite in rank than positive.

• Positive numbers get bigger as they increase 1, 2, 3

• Negative number get smaller as they go from -1, -2 , -3

Multiple Choice

Which number is largest?

• 35

• -234

• 0

• -35

Multiple Choice

Which number is smallest?

• -90

• 100

• 1

• -900

Multiple Choice

Add these numbers:

-5 + 3 = ?

• 7

• -2

• 2

• -7

Multiple Choice

Add these negative numbers

10 + -4 = ?

• -6

• 12

• -14

• 6