Signed Numbers Word Problems Worksheets
How Do You Spot Negative Values in Word Problems? Rarely you get to see negative values in a word problem; however, how can you identify them if they are present? To solve this dilemma, let's consider an example and solve them accordingly. 12-year old Jake wanted to buy candy from a local store. However, he didn’t have money, so he bought candy on loan from the kind shopkeeper worth $3. The next day he wanted to buy more candies from the shopkeeper and told him that he will the coming day. So, he bought candies and soda worth $8 and left. The next day, he came by with $15 and asked the shopkeeper, "how much loan he has to pay?" In this scenario, Jake has $15; however, he already has a debt of $3 and then $8 that he has to payback. So, first of all, he’s bill is already -$11. Now, he’ll pay around $15, so that he can get a return of -$11 + $15 = $4. There are other examples that also can help in resolving negative word problems.
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Basic Lesson
Example: If you put two boards that are 2 inches thick on top of each other, how thick is the double board? Two boards are 2 inches thick on the top.
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Intermediate Lesson
Explores how to approach complex Signed Numbers Word Problems. A proton has a charge of positive one. An electron has a charge of negative one. Find the total charge of an ion with 12 protons and 10 electrons.
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Independent Practice 1
Example: A milkman purchased 25 liters of milk and sold it at 4 places as 4 liters, 6 liters, 3 liters, and 7 liters respectively. How much milk remains? The answers can be found below.
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Independent Practice 2
Example: Teddy borrows $800. She repays the in installments for 6 months. For the 1st, 2nd & 3rd month she paid $45, $146 & $34. How much he has paid?
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Homework Worksheet
The status of Molly’s account was -$5. She wrote a check for $18.00. The bank charged her a $13.00 fee for being overdrawn. What was the new status of Molly’s account?
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Topic Quiz
If you put two boards 11 inches thick on top of each other, how thick is the double board? A math scoring matrix is included.
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Name the Mathematician
This mathematician is known for a calculus rule named after him and for finding the limit of a rational function whose numerator and denominator tend to zero at a point. Who is he? Guillame de L'Hopital.