## Using Basic Operations in Word Problems

Mathematics, Operations (+, -, x, /, etc.), Problem Solving, Fractions

### Objective

Students use basic operations of subtracting, adding, multiplying or dividing fractions, decimals, and percents to solve word problems. They use this activity as a review of their fundamental skills.

### Directions

Tell students that you will be going over the process of using basic operations to solve word problems. Complete Samples A and B as a class.
Sample A
Mrs. King bought a dozen muffins for the students in her classroom. If she bought, 1/2 of a dozen chocolate chip, 1/4 of a dozen apple cinnamon, and 1/4 dozen banana nut, how many of each muffin did she buy?
Hint: Remember that 1 dozen muffins = 12 muffins
First, calculate what fraction of the 1 dozen muffins is of what variety.
1/2 dozen chocolate chip = 6 chocolate chip muffins
1/4 dozen apple cinnamon = 3 apple cinnamon muffins
1/4 dozen banana nut = 3 banana nut muffins
Then, add the different types of muffins and see if they add up to a dozen muffins.
6 chocolate chip + 3 apple cinnamon + 3 banana nut = 12 muffins
Sample B
Kenny and Kendra each received \$10 to spend at the movies. Kenny bought his ticket for \$4.50 and then bought a small soda for \$2.00 and popcorn for \$2.50. How much money did Kenny spend, and did he have any money left? Kendra spent \$4.50 for her ticket and then paid \$1.75 for red licorice sticks and \$2.00 for a small soda. How much money did Kendra spend, and did she have any money left?

 Kenny Kendra First, add up all the money that Kenny spent at the movie theater. \$4.50 ticket \$2.00 small soda + \$2.50 popcorn ----- \$9.00 Next, subtract the total amount that Kenny spent from the \$10 that he was given. \$10.00 - \$9.00 ----- \$1.00 So Kenny spent \$9.00 at the theater and had \$1.00 left. Now, add up all the money that Kendra spent at the movie theater. \$4.50 ticket \$1.75 red licorice \$2.00 small soda ----- \$8.25 Next, subtract the total amount that Kendra spent from the \$10 that she was given. \$10.00 - \$8.25 ----- \$1.75 So Kendra spent \$8.25 at the theater and had \$1.75 left.

Distribute copies of the Word Problems Using Basic Operations activity sheet to students.

### Resources

• Word Problems Using Basic Operations activity sheets
• pencils