EOG Review Week 1

EOG Review Fractions and Decimals

By Andrew Ramirez

Review of Number System Standards:

Fraction Division

Decimal Operations​

Agenda

• Welcomes

• Warm-up

• Review Division of Fractions

  • Practice

• Review Decimal Operations

  • Practice

Dividing Fractions

Always remember...KCF

• KEEP, CHANGE, FLIP

  • Keep the first fraction

  • Change the Operation

  • Flip the second

• Works for all division of fraction Problems​

  ​

Improper vs. Mixed Number

Cannot divide by Mixed Numbers

• Must Change Mixed Numbers to Improper Fractions before division

  • Denominator times whole number, plus numerator

• To go from Improper to Mixed

  • Numerator divided by denominator (top divided by bottom)​

I do... 4/5÷1/3

Some text here about the topic of discussion

I do... 3 2/3÷5

Subject | Subject

We do... 2/5÷2

Subject | Subject

Some text here about the topic of discussion

We do... Jamal will cut a piece of wood that is 2 1/2 feet long into 1/4 foot sections. How many sections will result?

Subject | Subject

Some text here about the topic of discussion

Draw

Steve has $$2\ \frac{1}{2}$$ cups of flour. One of his recipes requires $$\frac{1}{8}$$   cup of flour. What is the maximum number of times Steve can complete the recipe?

Draw

Mike's yard has an area of $$23\ \frac{1}{5}$$  feet² . If the length of his yard is $$10\ \frac{1}{2}$$  feet, what is the width?

​Decimal Operations

• We will review adding, subtracting, multiplying and dividing of decimals here.

Subject | Subject

Adding and Subtracting Decimals

1. Line up the decimals and place values

2. Fill in zeros

3. Add/Subtract

4. Bring down the decimal​

Subject | Subject

Some text here about the topic of discussion

Draw

2.56+10.643

Draw

11.234-9.64

Multiplying Decimals

1. Stack numbers

2. DO NOT LINE UP DECIMALS!!!

3. Multiply like normal

4. Count digits after the decimal points

5. Move Decimal to the left that many times

Subject | Subject

Some text here about the topic of discussion

Draw

Solve 9.8 x 6.5 

Division of Decimals

1. Place first number inside the house and second outside the house

2. If the divisor has a decimal in it, make it a whole number

3. Move the decimal of the​ dividend inside the house the same number of times

4. Bring the decimal up

5. Divide​

Subject | Subject

Draw

$$12.5\div0.25$$  

Draw

Jenny bought gas for her car. Gas cost $3.45 per gallon. Jenny bought 12.2 gallons. What was the total cost for Jenny’s gas?

Draw

Paul had a job during his summer vacation. He earned $8.75 per hour. He worked 20 hours per week for 8 weeks. How much money did Paul earn?