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SUBJECT: MATHEMATICS 5
TOPIC: CONCEPTS OF WHOLE NUMBERS
INTRODUCTION
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67 8 9
The idea of numbers is very important in our daily life. In ancient times, people used things to count. For
example below:
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DISCUSSION
Later on, they invented symbols to represent numbers. These symbols are called numerals. In
history, we know that man has developed many numeral systems.
Some interesting ways of writing of writing numerals used by different people are shown as
follows:
CHINESE NUMBER SYSTEM
The counting rods were used by the ancient Chinese before the
invention of abacus. The way a number was represented by counting
rods was called the rod numeral system.
EGYPTIAN NUMBER SYSTEM
About 5,000 years ago, the Egyptians used hieroglyphics
or picture symbols along with tally marks to represent
numbers.
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ROMAN NUMBER SYSTEM
The Roman numeral system, developed between 500 B.C. and
100 A.D., also used grouping, addition, and symbols.
PLACE VALUE CHART
HUNDREDS
TENS
ONES
HUNDREDS
TENS
ONES
100 000
10 000
1 000
100
10
1
8
8
ONES
1 000 000
9
90
TENS
10 000 000
5
500
HUNDREDS
100 000 000
3
3000
ONES
1 000 000 000
2
200000
TENS
ONES
10 000 000 000
THOUSANDS
HUNDREDS
DIGI
TS
VAL
UE
MILLIONS
100 000 000 000
PLACE VALUE
BILLIONS
Name:
Year/Section:
Date:
Subject:
ACTIVITY
A. Directions: Complete the table according to the place value of the given digits.
TENS
ONES
HUNDREDS
TENS
ONES
HUNDREDS
TENS
ONES
HUNDREDS
TENS
ONES
10 000 000 000
1 000 000 000
100 000 000
10 000 000
1 000 000
100 000
10 000
1 000
100
10
1
ONES
HUNDREDS
THOUSANDS
100 000 000 000
MILLIONS
PLACE VALUE
BILLIONS
DIGITS
VALUE
5
6
7
8
9
1
2
3
4
5
6
7
B. Directions: Give the place value of the underlined number.
1.
2.
3.
4.
5.
524
_________________
1289 _________________
2376 _________________
123,678 _________________
2678909_________________
LEARNERS’ MODULE
MATHEMATICS
Grade 5 | Q1