Applied Mathematics - Slide 2

8/14/2019 Applied Mathematics - Slide 2

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Learning objectivesAt the end of this topic, you will be able to:

Identify quantity to be valued in a problem.

Make rough sketch to represent problem situation.

Write words and numbers in a rough sketch to represent a situation

in a problem.

Determine arithmetic operation to be used in solving a problem.

Use calculator to solve the problem.

Apply mathematics skills in solving a problem by using calculator in

laboratory activity.


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Example 1:

Weight average of 3 melons is 1.08 kg. If the weight of 2melons is 2.3 kg, what is the weight of another one melon in

grams.

Answer :

Identify quantity to be valued &representing problem situation


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Example 2:

The cost of a watch is RM 75. It is sold for RM 102. Find thepercentage of profit from the sale.

Answer :



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Example 3:

Aminah is 4 years old. Bala is 9 years older than Aminah.Chee Mengs age is 2 times the sum of the ages of Aminah

and Bala. What is Chee Sengs age?

Answer :



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1. A group of students is comprised of 120 girls and 80 boys. 2/3

of the girls and of the boys were selected for National

Service. Calculate the percentage of students in the group who

were selected for National Service.

3. A non-governmental organization is donating a sum of RM

1034.60 to four orphanages. If the money is distributed equally,

how much will each orphanage receive?

5. The original price of a badminton racket is RM 56. During a

clearance sale, the price of the badminton racket was reduced

by 30%. What was the price of the badminton racket during the

clearance sale?


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Example 1:

Weight average of 3 melons is 1.08 kg. If the weight of 2melons is 2.3 kg, what is the weight of another one melon in

grams.

Answer :

Determine arithmetic operation andperforming calculation


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Example 2:

The cost of a watch is RM 75. It is sold for RM 102. Find thepercentage of profit from the sale.

Answer :



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Example 3:

Aminah is 4 years old. Bala is 9 years older than Aminah.Chee Mengs age is 2 times the sum of the ages of Aminah

and Bala. What is Chee Sengs age?

Answer :



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1. A group of students is comprised of 120 girls and 80 boys. 2/3

of the girls and of the boys were selected for National

Service. Calculate the percentage of students in the group who

were selected for National Service.

3. A non-governmental organization is donating a sum of RM

1034.60 to four orphanages. If the money is distributed equally,

how much will each orphanage receive?

5. The original price of a badminton racket is RM 56. During a

clearance sale, the price of the badminton racket was reduced

by 30%. What was the price of the badminton racket during the

clearance sale?


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Exercise1. Ganesh receives a commission of 2 % for the sale of each used car.

If he sold a used car for the price of RM 18000, the commission

received is.

3. The price for 2 2/5 kg of chicken is RM 7.80. Farah bought 1.6 kg of

the chicken. How much did Farah pay?

5. Science textbooks are placed inside boxes of the same size. If each of

the boxes can keep 40 copies of the book. How many boxes are

required to keep 8480 copies of the book?

7. Ramli received RM 235.50 as donations from his classmates. He used

1/3 of the money to buy school uniforms. Calculate the balance of the

money Ramli had?


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Laboratory ActivityLaboratory Activities 2.0:

Estimate Expenditure for a Holiday

Purpose:

Applying mathematics skills to estimate expenditure for a holiday.

Materials:

A4 paper and scientific calculator.

Instruction:

Based on the situation and information given, you have to answer all

questions following its sequence. Show your calculation work clearly for each

question. Time allocated about 1 hour.


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Thank you for beingattentive

Applied Mathematics - Slide 2

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