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TOPIC 1 :WHOLE NUMBER
MATHEMATICS FORM 1
PREPAIR BY:Ilham Karimi Binti Mat RofD20111048196
INTRODUCTION
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 mathematical ideas
Mastery of basic skills can help students learn other topics.
Fraction & Decimal is
not a whole number!
hundred twenty a
4 9 3
1.1.1PLACE VALUE
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"
•Each digit in a number has a place value and value of a particular digit
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
twenty a
3 1
Thirty-one
Write whole numbers in words
WRITE WHOLE NUMBERS IN FIGURES
Fifty-six
Seven ratuh twenty-three
Five thousand six hundred and twenty-seven
56
723
5627
ROUNDING
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
> EXAMPLE <
Round 457828 to the nearest hundred
457828
Place value is hundreds
2<5 , keep the digits 8 and replace all
digits to the right of 0
answer :457800
> More than< Less than
> EXAMPLE <
Round 4279 to the nearest fifty
4279
Value place is twenty
9>5 , add 1 to the digit 7 and replace all digits to the right of 0
answer :4280
> More than< Less than
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 tothe place.ii. Add the digits in descending order, a, twenty, hundred and beyond.iii. Step work from right to left.
EXAMPLE 1 :Solve 526 + 621 = ?
EXAMPLE 2 :Solve 5327 + 56 = ?
EXAMPLE 3 :Solve 1123 +5610 = ? 526
+ 621 1147
5327+ 56 5383
1183+ 5670 6853
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.
ADDITION AND SUBTRACTION
EXAMPLE 1 :Solve 765-123 = ?
EXAMPLE 2 :Solve 4561 – 381 = ?
EXAMPLE 3 :Solve 8534 -5730 = ?
765- 123 642
4521- 381 4140
8534- 5730 2804
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)
EXAMPLE :Solve 318 x 34 = ?
3 1 8X 3 4 1 2 7 2
9 5 41 0 8 1 2
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.
MULTIPLICATION AND DIVISION
EXAMPLE :Solve 576 ÷ 18 = ?
3 21 8 5 7 6
5 4 3 6 3 6 . .
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.
Lets doing some test
Question 1
Which is the 'two thousand six hundred and forty-nine'?
A2639B2649C2469D2339
List of Questions ….
Question 2
Round 42838 to the nearest thousand.A42840B42900C42800D43000
List of Questions ….
Question 3
Get the sum of 2344 and 129. Next obtain minus revenue for the number.A2473/ 2215B2561/ 2135C2910/ 2153D2437/ 2215
List of Questions ….
Question 4
What is the product of 345 and 12?A4041B4400C4140D4144
Senarai Soalan….
Question 5
Solve 54816 ÷ 12 =A4568B4566C4368D4364
List of Questions ….
Question 6
Solve 47 x 2 – ( 6 + 12 ) =A70B65C72D76
List of Questions ….
THE END
SORRY! TRY AGAIN..
NEXT QUESTIONTRY
AGAIN!
LIST OF QUESTION
QUESTION1QUESTION2QUESTION3QUESTION4QUESTION5QUESTION6
THE END
-THE END-THANK YOU
