Khan Academy: Adding and Subtracting on Number Line

Need a number line? Here are four number lines ranging from zero to twenty.

Administer a learning activity that challenges your class to use a number line in the form of lily pads. Learners are instructed to display the number of hops that Toad and Frog take during their journey on a number line. Young...

Using a number line can provide students with a concrete representation of the value various numbers hold. Sal plots 6 different numbers on a number line. He includes whole, decimal, and negative numbers.

Watch Sal use a number lines to solve addition and subtraction word problems with numbers less than 100. [4:27]

Demonstrates how to use a number line to visualize and solve addition and subtraction word problems. [4:27]

Once your class has mastered the identification of fractions, have them locate fractions on a number line. This sheet reinforces interval sizes of parts included in a whole, and directly relates to the standards associated with Common...

Watch as Sal figures out which number line matches up with a 2-digit addition or subtraction problem. [1:52]

Step by step, two examples of creating number lines are explained through a series of animations. One is meant to watch at home, the second can be viewed in class, and there is a third tab with two sample problems to try. This skill,...

Third graders determine the start time on a number line, given the elapsed time and end time.

Practice adding and subtracting using the number line. Numbers used are 100 or less.