Addition of Integers

1. 1

2. 2
Least Mastered Learning Competency:
1. Add the integers using different approaches

3. 3
1.HI! I” M BOT and we are
TEAM UMIZOOMI! I CAN
SEE EVERYTHING IN MY
BELLY BELLY SCREEN!!!
WAIT!!I’MGETTING A
SIGNAL
2.HELLO EVERYONEI’m
GIO! I LOVEMATH
POWER! I’MFIRED
UP!!!!
3.I’MLILY!
MASTER OF
PATTERN
POWER! LET’S
DIVE IN

4. 4
1. What’s
the
problem
GERSINTE?
2. I was electedasthe
Presidentinourclass.ButI
usedto cheatand fight. NowI
wantto stop my negative
traitsand add my positive
traits. How will Ido it?Team
umizoomi yougottahelpme..
3.Don’t
worry
we’ll help
you
4.Let’
solve
it up
5.Thanks
umizoomi I
knowI can
count onyou

5. 5
1. Let’suse ADDITION
OF INTEGERS!!!!!
2. Let’suse ballsto
representthe positive
traitsand negative
traitsof Gersinte…..
3. SuperShape!!!!
Let’suse blue ball for
positive and
red ball for
negative!!!!Let’sadd
up!!!!

6. 6
`
`
4. Remove any neutral pair formed
Therefore, 3 + (-2) = 1 since 1 postive ball is left after cancellation..
1. You can use
your ballstoadd
integers!!!To
model the sumof
3 and negative 2
2. Start with3 positive balls
3. Add2 negative
balls

7. 7
Therefore, -5 + 3 = -2 since there are two negative
balls left after cancellation
3. Remove any
neutral formed
1. To model the
sumof negative 5
and positive 3,start
with5 negative
balls
2. Add3
postive balls

8. 8
Addition of integers with like signs and with unlike signs can be explained by the illustration
below.
LIKE SIGNS
And
And
UNLIKE SIGNS
And
And

9. 9
Rules for Adding Integers
LIKE SIGNS: (+) + (+) or (-) + (-)
Find the sum of their absolute values, and use the signs
common to both integers.
UNLIKE SIGNS: (+) + (-) or (-) + (+)
Find the difference of their absolute values, and use the
sign of the integer with the greater absolute value.

10. 10
I. WRITE YOUR BALLS. Write each addition expression that is illustrated below. Then
add..
1. and ___________________________
2. and __________________________________________
3. and ____________________
4. and ______________
5. and ____________________

11. 11
II. BALLS IT UP. Use the balls to model each expression. Color it blue if it is positive and
red if it is negative.Record the sum.
1. (-3) + (-4) =_____
2. 6 + 2 = _____
3. (-6) + 3 = _____
4. 5 + (-5) = _____
5. 1 + (-5) = _____

12. 12
I. MISS THAT BALL. Add the following integers without using the balls.
1. 7 + 4 = _____
2. (-4) + (-5) = _____
3. (3) + (-3) = _____
4. 5 + 8 = _____
5. 10 + (-5) = _____
6. (-26) + (35) = _____
7. 23 + (-16) = _____
8. 8 + (-11) = _____
9. (-13) + 36 = _____
10. (-47) + 33 = _____

13. 13
II. Direction. Translate the following phrases or statements using integers. Write your
Answer on the space provided after each phrase/statement.
1. A gain of Php250 ____________________
2. A loss of Php375 ____________________
3. A Php1500 deposit into your account ____________________
4. A 30o
drop in temperature ____________________
5. A 5 point increase in his mathematics grade ______________
6. A 50 lbs loss in her weight ___________________
7. A Php1000 withdrawal from her savings account ___________________
8. A 2 point decrease in his Araling Panlipunan grade ____________________
9. A 10o
rise in temperature during summer ____________________
10. An increase of Php300 to his salary ____________________

14. 14
I. BALLS-TER. Find the sum of the following to bolster your skills in adding up integers.
Write your answer on the space provided after each item.
1. (-4) + (-2) + (-10) = __________
2. (-35) + 48 + 12 = __________
3. (-6) + 4 + 2 = __________
4. (-5) + (-5) + 5 + (-5) = __________
5. 12 + (-11) + (-4) = __________
6. 10 + (-2) + (-3) = __________
7. 5 + (-6) + 7 = __________
8. 9 + 10 + (-7) = __________
9. (-6) + 5 + (-4) + (-3) = __________
10. (-4) + (-6) + 12 + (-5) + 15 = __________

15. 15
I. BALLS-EYE. Find the missing number.
1. (-8) + _____ = -13
2. 9 + _____ = 0
3. 15 + _____ = -7
4. _____ + 5 = 10
5. _____ + (-1) = 0
6. -7 + _____ = -3
7. (-8) + _____ = 5
8. _____ + 15 = 12
9. _____ + 19 = 0
10. 5 + _____ = 2

16. 16
1. Textbook:
Mathematics Skillbook for First Year
By Anastacia Peñaverde-Viduya and Gina Balgos-Tatil pp. 40-42
Addition of Integers can also be solved by using number line.
E-Math Elementary Algebra pp. 118-126
By Orlando A. Oronce and Marilyn O. Mendoza
2. Internet
http://www.algebra-class.com/adding-integers.html
https://www.scribd.com/doc/110661816/Strategic-Intervention-Material-
Addition-of-Integers
3. Video
http://www.virtualnerd.com/middle-math/integers-coordinate-plane/integers-
absolute-value/represent-real-world-examples
Math Made Easy : http://www/youtube.com/watch?

17. 17
From pages 9-10: Activity Card
I. WRITE YOUR BALLS
1. 4 + 2 = 6
2. -2 + (-3) = -5
3. 5 + (-3) = 2
4. 3 + (-6) = -3
5. -3 + 5 = 2
II. BALLS IT UP
2. + = 8
1. + = -7
3. + = -3
4. + = 0
5. + = -4
If you get
0 Mistake = Outstanding
1-2 Mistakes = Very
Satisfactory
3-4 Mistakes = Satisfactory
5 or more mistakes = Try Again

18. 18
From pages 11-12: Assessment Card
I. MISS THAT BALL
1. 11 6. 9
2. -9 7. 7
3. 0 8. -3
4. 13 9. 23
5. 5 10. -14
II.
1. 250 6. -50
2. -375 7. -1000
3. 1500 8. -2
4. -30 9. 10
5. 5 10. 300
If you get
0 Mistake = Outstanding
1-2 Mistakes = Very
Satisfactory
3-4 Mistakes = Satisfactory
5 or more mistakes = Try Again

19. 19
From pages 13-14: Enrichment Card
I. BALLS-TER
1. -16 6. 5
2. 25 7. 6
3. 0 8. 12
4. -10 9. -8
5. -3 10. 12
II. BALLS-EYE
1. -5 6. 4
2. -9 7. 3
3. -22 8. -3
4. 5 9. -19
5. 1 10. -3
If you get
0 Mistake = Outstanding
1-2 Mistakes = Very
Satisfactory
3-4 Mistakes = Satisfactory
5 or more mistakes = Try Again