Inequalities with Number Lines

Inequalities with Number Lines

Math > Anything Else!

Positive & Negative Numbers

• Numbers to the LEFT of zero are always negative

• Numbers to the RIGHT of zero are always positive

• The farther away from zero a number is to the LEFT, the LESS value it has so -9 < -4 because -9 is FARTHER AWAY from zero

• The closer to zero a number is on the LEFT, the GREATER value it has so -2 > -6 because -2 is closer to zero

General Statements About Inequalities

• The FIRST number in a LESS THAN inequality will always be located to the LEFT of the second number on a number line

• For example, -7 < 4 shows that -7 will be to the left

• The FIRST number in a GREATER THAN inequality will always be located to the RIGHT of the second number on a number line

• For example, 12 > 5 shows that 12 will be to the right

Multiple Choice

Numbers to the left are less than numbers to the right on a number line.

• True

• False

Multiple Choice

Any number to the right of zero will be ________

• a fraction

• negative

• positive

• a decimal

Multiple Select

Check all the statements that are true about the number -7

• It is to the left of zero

• It is to the right of zero

• It is greater than -9

• It is less than -4

• It is equal to 7

Multiple Choice

If -4 is to the left of a number, the other number has to be bigger than -4.

• True

• False

Multiple Select

What could you say about the numbers -3 and 3? Check all that are true.

• -3 is to the right of zero

• -3 and 3 are the same distance from zero

• -3 < 3

• 3 is to the left of zero