Math Intervention 3–5 Grade

Addition and Subtraction Concepts 41

Rigorous Problem Solving with the Concept of
Number Line Profi ciency 1

Number line mix up!

Part A

Find and fi x the errors to complete the number line diagram.

Hint: 70 is correct. Count by ones.

65 65 67 66 69 70 80 81 73 75

Part B

Correctly place the following numbers to show skip counting
on the number line diagram.

100 140 70 150 80 130 90 110 60 120

Describe the skip counting.

© 2016, Math Intervention: Grades 3–5, Jennifer Taylor-Cox, Routledge