USING A NUMBER LINE What is a Number Line? • Number lines can be used to help with many different ways. • The most common ways are for addition and subtraction. How to Use a Number Line for an Addition Problem: • When using a number line for an addition problem, start by putting your finger on the first number of the problem. 4 + 2 = 0—1—2—3— 4—5—6—7—8—9—10 • The second number of the problem will tell you how many jumps to make. For addition, you will move to the right so the numbers get larger. • Be sure not to count the number you started on. The number line is kind of like a board game. You only count the number of moves. 4 + 2 = 0—1—2—3—4—5— 6—7—8—9—10 • The number you land on is your answer. 4 + 2 = 6 How to Use a Number Line for a Subtraction Problem: • When using a number line for subtraction, you will move to the left. The numbers should get smaller. 4 – 3 = 0—1—2—3— 4—5—6—7—8—9—10 0— 1—2—3—4—5—6—7—8—9—10 4 – 3 = 1 © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
Try this! • Use the number line to add or subtract these numbers. 0—1—2—3—4—5—6—7—8—9—10—11—12—13—14—15—16—17—18— 3 + 7 = ______ 10 – 4 = _____ 5 + 6 = ______ 14 – 8 = _____ 8 + 4 = ______ 16 – 9 = _____ © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.