Lesson 5-5

LET'S BUILD Use Reasoning to Solve Subtraction Word Problems

For more help with this lesson, view the Visual Learning Animation or the Another Look Video.

MATH HELP AT HOME

Sample Additional Practice Exercise 1

There are 6 chipmunks. Four ran away. How many chipmunks are left?

Draw a picture and write an equation to show what is happening.

A drawing of 6 cubes with 4 cubes crossed out. Below is the equation 6 minus 4 equals 2.

Draw counters, cubes, or other objects to represent the story. Draw 6 cubes for the 6 chipmunks at the beginning of the story. Mark an X on 4 cubes for the 4 chipmunks that run away. Count the unmarked cubes to find how many chipmunks are left: 2. Write the subtraction equation: $6 - 4 = 2$ .

HOME ACTIVITY

Give Away

MATERIALS

Small Objects, Paper, Pencil

ACTIVITY

Give your child 7 small objects and ask him or her to give you 3 of the objects. Ask your child to tell you how many objects are left and ask how he or she knows. Then ask your child to write an equation $(7 - 3 = 4)$ .