Multiplication Of Whole Numbers, Decimals, Squares And Square Roots Worksheet With Answers Page 28
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41Unit 20
Multiplying and dividing money
Objectives
By the end of this unit, each pupil should be able to:
•
Multiply and divide money by a whole number
•
Solve related quantitative reasoning
•
Calculate profit and loss
problems.
Suggested resources
Lesson 1
Pupil’s Book pages 124 and 125;
Workbook page 34
Cards on multiplication of money by whole
numbers; Real and models of money; Empty
Preparation
packets of: sugar, matches; Empty tins of: powder
You will need to have:
chocolate drink, tomatoes, milk; Nigerian
•
Cards on multiplication of money by whole
currencies; Multiplication tables; Shopping items.
numbers
Key word definitions
•
A selection of shopping items
•
Nigerian currency
cost price: amount an item is bought for
•
Multiplication tables.
selling price: amount an item is sold for
profit: when an item is sold for more than it was
Starter activity
bought for
Before the lesson, drill the pupils on multiplication
loss: when an item is sold for less than it was bought
tables up to 10. For example, 8 × 5 = 5 groups of
for
8 = 40. Make a table of multiplication and ask the
Common errors that pupils make
pupils to complete as fast as possible. For example:
Pupils usually find division of numbers more difficult
×
4
5
6
7
to operate than multiplication. When a division of
number has a remainder, pupils sometimes ignore the
2
8
remainders and write only the quotient.
3
18
Evaluation guide
4
Pupils to:
1. Solve problems of multiplication of money by
Lesson focus
whole numbers.
Go through the worked examples with the pupils.
2. Solve problems of division of money by whole
Encourage your pupils to use the expansion
numbers.
method where necessary.
3. Solve quantitative aptitude problems involving
division of money.
Before the pupils attempt Exercise 1, show them
4. Solve problems on the calculations of profit
some flashcards on multiplication of numbers from
and loss.
2 to 10 for example: 5 × 7, 2 × 4,10 × 8. Ask them
5. Solve problems on quantitative reasoning
to say the answers as fast as possible.
involving profit and loss.
6. State ways on how to make profit in life.
83
Unit 20: Multiplying and dividing money
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