2. Whole number is a serial number starting
from 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,…...
Whole numbers are the basis of most of the Fraction &
Decimal is
mathematical ideas not a whole
number!
Mastery of basic skills can help students
learn other topics.
3. •Each digit in a number has a place value and value of a particular digit
hundred twenty a
4 9 3
Number above is 493
Have three digits
Digit 3 is in place "sa". Value 3 indicates that there are three
"a"
Digit 9 is located at "twenty". Value of 9 indicates that there
are 9 "twenty"
Digit 4 is in place "hundred". Value of 4 indicates that there
are four "hundred"
4. Write whole numbers in words
twenty a
3 1
Thirty-one
hundred twenty a
3 7 5
Three hundred and seventy-five
thousand hundred twenty a
2 4 1 8
Two thousand four hundred and eighteen
5. Fifty-six
56
Seven ratuh twenty-three
723
Five thousand six hundred and twenty-seven
5627
6. Rounding is used to obtain the expected value. The expected value is
the nearest value.
A number can be rounded to a specific place value in
accordance with the following rounding rules.
if the digit is 5 or more, add 1 to the digit in the place to be
rounded up and replace the other digits to the right of 0.
if the digit is less than 5, keep the digit in the place to be
rounded up and replace the other digits to the right of the
empty
7. > More than
< Less than
Round 457828 to the nearest hundred
457828
2<5 , keep the digits 8
and replace all digits
to the right of 0
Place value is
hundreds
answer :
457800
8. > More than
< Less than
Round 4279 to the nearest fifty
4279
9>5 , add 1 to the
digit 7 and replace all
digits to the right of 0
Value place is
twenty
answer :
4280
9. ADDITION AND SUBTRACTION
ADDItion
Addition is the process of finding the sum of two or more numbers.
The steps involved in the addition of whole numbers:
i. Arrange the numbers vertically according to
the place.
i. Add the digits in descending order, a, twenty, hundred and beyond.
ii. Step work from right to left.
11. ADDITION AND SUBTRACTION
SUBTRACTION
• Subtraction is the process of finding the difference between the
two to find the remainder when a smaller number subtracted
from the larger number.
• Example: subtract 3 from 9, 9 - 3 = 6.
• The steps involved in subtraction of the
whole number is the same the steps that
need to be taken to increase.
13. MULTIPLICATION AND DIVISION
multiplication
• Multiplication is repeated addition process.
• Steps to perform multiplication:
= Round numbers sorted by the place.
= Multiply by a, twenty and beyond.
• The product of a whole number by the number
zero is equal to zero
(3 x 0 = 0)
• The product of a whole number of
one, corresponding to the number itself
(9 x 1 = 9)
15. MULTIPLICATION AND DIVISION
DIVISION
• Division is the equal sharing operations.
• When 0 divided by any number, the result is either 0 (0 ÷ 5 = 0).
• Division of a number by 0 is worthless.
• Steps to do the division:
= Round numbers arranged in conventional form.
= Begin dividing the value of the greatest.
17. PRINCIPLES OF CALCULATION
• When there is only one operation, a calculation is done
from left to right.
• Calculation involving the operations' + ' and' - ' only' or
'x' and ' ' only, a calculation is done from left to right.
• To make calculations involving brackets and a number of
operations, operating in the proper brackets solved first,
followed by the 'x' and ' ' and a '+' and '-'. For example,
45 + (2 x 5) - 12 4 = 52.
18.
19. List of
Questions
….
Which is the 'two thousand six hundred and
forty-nine'?
A 2639
B 2649
C 2469
D 2339
20. List of
Questions
….
Round 42838 to the nearest thousand.
A 42840
B 42900
C 42800
D 43000
21. List of
Questions
….
Get the sum of 2344 and 129.
Next obtain minus revenue for the number.
A 2473/ 2215
B 2561/ 2135
C 2910/ 2153
D 2437/ 2215
22. Senarai
Soalan….
What is the product of 345 and 12?
A 4041
B 4400
C 4140
D 4144
23. List of
Questions
….
Solve 54816 ÷ 12 =
A 4568
B 4566
C 4368
D 4364
24. List of
Questions
….
Solve 47 x 2 – ( 6 + 12 ) =
A 70
B 65
C 72
D 76
