Deconstructing Word Problems Pt2

Deconstructing Word Problems Pt2

Writing Equations

Writing Equations

• Identify your Variable ( x, a, t, etc.)

• x + 12 = 30

• x - 2 = 12

Open Ended

Write an equation: One half of a number is 24

Use / for your fraction

Open Ended

Write an equation: The quotient of a number and 3 is 10

Use / for your fraction

Open Ended

Write an equation: If three times a number is increased by 4, the result is -8

Open Ended

How can mathematical relationships be represented as expressions and equations? Hint: What 3 things make up a math problem?

Steps to Writing an Equation from a Word Problem

• READ the problem

• READ it AGAIN and underline key words

• Work through the K-N-W-S strategy chart

• Translate the K-N-W-S information into an equation

Nancy rode the roller coaster 8 times, which was twice as many times as she rode the Ferris wheel.

• Know: Rode Roller coaster 8 times and twice as many as Ferris wheel

• Not: N/A

• Want: How many times did Nancy ride the Ferris wheel?

• Strategy: Multiply

• 2f = 8

• f = ?

Fill in the Blanks

WHAT IS THE EQUATION REPRESENTING THIS SITUATION:

Jasmine, who bought $15 worth of make-up, spent $6 less then Lisa spent. DO NOT USE SPACES AND USE "x" FOR VARIABLE

Fill in the Blanks

WHAT IS THE EQUATION REPRESENTING THIS SITUATION:

Brandi’s 85 on her English test was 37 points less than three times the grade on her Science test.

DO NOT USE SPACES AND USE "x" FOR VARIABLE

Fill in the Blanks

WHAT IS THE EQUATION REPRESENTING THIS SITUATION:

Kevin, who has all 13 girls’ phone numbers that are in his homeroom, has 3 more than half the number of girls’ phone numbers that Sam has.

DO NOT USE SPACES, USE / FOR FRACTION, AND USE "x" FOR VARIABLE

Fill in the Blanks

WHAT IS THE EQUATION REPRESENTING THIS SITUATION:

Sean sold 4 more boxes of candy for the school fundraiser than Mark. The sum of the boxes they sold was 22. How many boxes did Mark sell?

DO NOT USE SPACES AND USE "x" FOR VARIABLE