3. RULES IN ADDING INTEGERS
ADDING SAME SIGN INTEGERS
1. Add the numbers
2. Copy the sign
ADDING DIFFERENT SIGN INTEGERS
1. Subtract the numbers
2. Copy the sign of the larger number.
4. RULES IN SUBTRACTING INTEGERS
1. Copy the minuend
2. Proceed to addition
3. Get the opposite of the
subtrahend.
5.
6.
7. 1. Read and solve mentally.
2. Write the correct answer on your
board.
3. Follow the time limit given in each
category.
4. Observe SILENCE.
8. 5. Questions will be read twice. After the
reading, the teacher will say “go”, and the
timer starts. Everybody should stop
writing as soon as teacher says “stop”
22. DIFFICULT ROUND
A submarine cruises at a depth of 40
meters. Directly above it is an
airplane flying at an altitude of 192
meters. How far apart are they?
24. “Every negative thought is a down
payment on your future. Every positive
thought is an investment to your
future.”
25. PAIR ACTIVITY!
Mrs. Caspe deposited an amount of ₧ 25,000
in her savings account. After a month, she
deposited an additional amount of ₧ 10,000.
The next month she withdrew an amount of
₧15,000 for her son’s tuition. The following
month she withdrew ₧7,000. How much was
left in her savings account?