2. Get any piece of paper and ball pen. Write your month
number from your birthday.
For example, if your birthday is June then your month
number is 6.
Then, multiply by 5. Next, add 6.
Multiply the total by 4. Add 9.
Multiply by 5 once again.
Then, add your birth date. If you were born on the 14th,
then add 14. And last, subtract 165.
Math Trick
4. An integer is a number with no decimal or fractional part, from
the set of negative and positive numbers, including zero.
Examples of integers are: -5, 0, 1, 5, 8, 97, and 3, 043.
What Is an Integer?
5. Positive Integers: A number that lies on the right side of number
line and has a positive sign (it is also a positive number if it
doesn’t have a sign). Example: 1, 2, 3 . .
These numbers are greater than zero.
What is a positive integers?
6. Negative Integers: A number that lies on left side of the number
line and has negative sign. Example: -1, -2, -3 . . . These
numbers are lesser than zero.
What is a negative integers?
8. Addition is a mathematical operation that explains the total
amount of objects when they are put together in a collection.
Subtraction is the arithmetic operation that is the opposite
of addition. Subtraction is used when you want to know how
many objects are left in the group after you take away a certain
number of an objects from that group.
9. ADDITION OF INTEGERS
Rule #1 If the addends have the same sign (+,+) and (–,–) the
number are added, and the common sign is used for the sum.
Examples:
A. (+12) + (+18) =
B. (–4) + (–5) =
10. Rule #2 If the addends have different signs (+,–) and (–,+)
disregard the sign and perform subtraction with the numbers.
The sign of the greater number is affixed to the answer.
ADDITION OF INTEGERS
Examples:
A. (+49) + (–23) =
B. (–32) + (+18) =
11. SUBTRACTION OF INTEGERS
Rule #1 Change the subtraction sign into an addition sign.
Rule #2 Take the opposite of the number that immediately follow
the newly placed addition sign.
Examples:
A. 8 – 5 = ? Solution 8+(–5) =
B. 9 – 12 = ? Solution 9 + (–12) =
12. If the addends have the same sign (+,+) and (–,–) the number are added,
and the common sign is used for the sum.
If the addends have different signs (+,–)and (–,+) disregard the sign and
perform subtraction with the numbers. The sign of the greater number is affixed
to the answer.
Change the subtraction sign into an addition sign.
Take the opposite of the number that immediately follow the newly
placed addition sign.
The rules for addition and subtraction of integers?
