Problems

SubtractionProblem #1

Peter has 20 dollars in his pocket. He buys a 32 ounces vanilla ice cream for 8 dollars. How much is Peter's change?

Question

How much is Peter's change?

Solution

In this situation, Peter is experiencing a loss because some money will be taken away from him for the ice cream.

Therefore, we need to do subtraction

Answer

Peter's change = 20 - 8 = 18 dollars

Reference

http://www.basic-mathematics.com/subtraction-word-problems.html


Problem #2

Suppose that a car dealer has an inventory of 15,258 Honda Accord they have to sell by the end of 2008. Suppose they don't meet their goals and sell only 12456 Honda Accord by the end of 2008. How many cars are left in the back yard?

Question

How many cars are left in the back yard?

Solution

In this situation, we are removing parts from a whole to get the leftover.

Therefore, we do subtraction

Answer

Number of cars in the back yard = 15258 - 12456 = 2802

Reference

Number of cars in the back yard = 15258 - 12456 = 2802

Problem #3

At a local supermarket, a box of cereal usually costs 5.56 dollars. This week, the supermarket sells the box of cereal for 3.42 dollars. How much money will you save if you buy this cereal at this supermarket?

Question

How much money will you save if you buy this cereal at this supermarket?

Solution

In this situation, there is a decrease in the price.

Therefore, we use subtraction.

Answer

Saving = 5.56 - 3.42 = 2.14 dollars

Reference



Problem #4

Harry has 38 stickers, Jimmy has 26 stickers. How many stickers do they have in all?

Question

How many stickers do they have in all?

Solution

38 stickers Harry

+ 26 stickers Jimmy

_________________

64 total stickers

Answer

64 stickers

Reference

Soaring 21st century Mathematics

Grade 1

p. 252

AdditionProblem #1

John has 800 dollars in his checking account. He received from his job a check for 1,200 dollars and deposit the amount in his checking account. How much money does he have in his checking after the deposit?

Question

How much money does he have in his checking after the deposit?

Solution

The fact of receiving money from his job is a gain. Therefore, we need to perform addition

Answer

Total amount in checking account = 800 + 1200 = 2000 dollars

Reference

http://www.basic-mathematics.com/addition-word-problems.html


Problem #2

Peter sells ice cream for a living. On Monday his revenue was 150 dollars. On Tuesday, his revenue was 100 dollars. Finally, on Wednesday, his revenue was 50 dollars. How much is Peter's revenue so far?

Question

How much is Peter's revenue so far?

Solution

Peter is experiencing a gain in revenue. Therefore, we use addition.

Answer

Peter's revenue = 150 + 50 + 100 = 300 dollars

Reference



Problem #3

Eiffel Tower is about 1063 feet high. The Statue of Liberty along with its foundation and pedestal is about 305 feet. If you could put the Statue of Liberty on top of the Eiffel Tower, how high up in heaven will the two monuments reach?

Question

If you could put the Statue of Liberty on top of the Eiffel Tower, how high up in heaven will the two monuments reach?

Solution

The situation above is a combination of parts to form a whole. Therefore, we use addition.

Answer

1368

Reference



Problem #4

Kelly has 25 straws. Her brother takes away 7 of her straws. How many straws does Kelly have now?

Question

How many straws does Kelly have now?

Solution

25 straws Kelly

- Straws take away

___________________

18 straws left to Kelly

Answer

18 straws left to kelly

Reference

Soaring 21st Century Mathematics

Grade 1

P. 253

Multiplication

Problem #1:

There are 60 minutes in 1 hour. How many minutes are there in 12 hours?

Question

How many minutes are there in 12 hours?

Solution

Once again, you can use addition to solve this problem, but you will waste your time since you have to do repeated addition of 60 twelve times.

60+60+60+60+60+60+60+60+60+60+60+60 = 720

Answer

However, 60 × 12 = 720 gives you the same answer faster

Reference

http://www.basic-mathematics.com/multiplication-word-problems.html


Problem #2:

Mr. John's new hybrid car gets him 50 miles per gallons.If Mr John get a full tank with 14 gallons of gas, How far can Mr John go?

Question

How far can Mr John go?

Solution

Number of miles = 50 × 14 = 700 miles.

Answer700 miles.

Reference



Problem #3:

Sylvia's income is 500 dollars per week. How much does Sylvia makes every year?

Question

How much does Sylvia makes every year?

Solution

1 year = 52 weeks.

Thus, 500 × 52 = 26,000 dollars

Answer

26,000 dollars

Reference



Division

Problem #1:

Sylvia's income is 26,000 dollars per year (52 weeks). How much money does Sylvia make weekly?

Question

How much money does Sylvia make weekly?

Solution

Sylvia's income of 26,000 dollars was found by doing the following:

? × 52 = 26,000 where the question mark represents Sylvia's weekly income.

It may take you forever to try every possible number that you need to multiply by 52 to get 26,000

The number is of course 500, but to find it, do a quick division of 26,000 by 52.

Answer

26,000

Reference

http://www.basic-mathematics.com/division-word-problems.html


Problem #2:

How many hours are there in 660 minutes?

Solution

? × 60 = 660 minutes where ? represents number of hours

Just divide 660 by 60

660 ÷ 60 = 11, so there are 11 hours in 660 minutes

Answer

660 minutes

Reference



Problem #3:

How many meters are there in 550 centimeters?

Solution

1 meter = 100 centimeters

? × 100 = 550 centimeters where ? represents number of meters

Just divide 550 by 100

550 ÷ 100 = 5.5, so there are 5.5 meters in 550 centimeters

Answer

550 centimeters

Reference



Problem #4:

In one night, a movie theater sells tickets for 6450 dollars. Each ticket costs 15 dollars. How many people purchased a ticket?

Question

How many people purchased a ticket?

Solution? × 15 = 6450 where the question mark represents the number of people who purchased a ticket.

6450 ÷ 15 = 430, so 430 people purchased a ticket.

Answer

430 people purchased a ticket.

Reference



PROJECT

inMATHEMATICS 4

Jewel Ian Kay P. Vergara

Grade 4 – Angel Michael

Mr. Randy Enriquez

Problems

Documents

Transcript of Problems