# Word Problems on Multiplying and Dividing Negative Numbers

## Grade 7 Math Worksheets

**What are the rules for multiplying integers?**

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**How do you divide negative numbers?**

Now let us discuss some word problems on this.

*Example:***Daisy joined a gym 8 weeks ago and she lost kg every week. Write an equation that describes the above situation.**

Since Daisy lost kg every week, so the equation which describes the above situation =

– × 8 = **-4 kg**, which means she lost 4 kgs in 8 weeks.

*Example:***If the temperature changed at a rate of -3°C per hour, then after how many hours did the temperature reached -12°C?**

Number of hours for the temperature to reach from -3°C to -12°C = = **4 hours**

**Check Point**

- John dives from the surface of water at a rate of 2 feet per second. Where will he be from the surface of water after 30 seconds?
- If a football team’s 2 plays resulted in a loss of 5 yards, then what integer represents the total number of yards they lost in 2 plays?

- If the cost of one share of a company declined a total of $30 in 5 days, then what integer represents the cost of one share by which it declined on an average per day?
- A daily soap opera lost a total of 5,000 viewers in the last 5 months. If it lost the same number of viewers in each month, then write an equation to represent the number of viewers lost in one month.

- If the height of an old person decreased by a total of 1 cm in 5 years and it decreased by the same amount each year, then what integer represents his change in height every year?

##### Answer key

- -60 feet
- -10 yards
- -6 dollars
- = -1000
- -0.2 cm

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