Understanding Number Lines

What number is represented by a point on a number line that starts at 20 and ends at 30, with each tick mark representing one whole number?

• 23

• 22

• 21

• 24

On a number line from 50 to 60, where each tick mark represents two whole numbers, which number does the point represent?

• 58

• 56

• 54

• 52

If a number line is drawn from 30 to 40, and the point is located after halfway, which number is it likely to represent?

• 35

• 34

• 36

• 37