Activity 2. Add the following integers. 1) 12 + (-29) = 2) - 34 + (-21) = 3) 42 + 24 = 4) 81+ 81 = 5) 0+ (12) = 6) - 42+ (14) = 7) 23 + 17= 8) - 16+ (29)= 9) 0 + (13) = 10) - 19 + (-7)= 11) - 26 + (-16)= 12) - 26+ (17)= 13) 29 + (-29) = 14) 7 + (-14)= 15) 0 + (-8) =

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Activity 2. Add the following integers. 1) 12 + (-29) = 2) - 34 + (-21) = 3) 42 + 24 = 4) 81+ 81 = 5) 0+ (12) = 6) - 42+ (14) = 7) 23 + 17= 8) - 16+ (29)= 9) 0 + (13) = 10) - 19 + (-7)= 11) - 26 + (-16)= 12) - 26+ (17)= 13) 29 + (-29) = 14) 7 + (-14)= 15) 0 + (-8) =

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TrishiaVinasgo TrishiaVinasgo · Answer 1

ANSWER:

1. ) 12 + (-29) = (-17)

2. ) -34 + (-21) = (-55)

3. ) 42 + 24 = 66

4. ) 81 + 81 = 162

5. ) 0 + 12 = 12

6. ) -42 + 14 = (-28)

7. ) 23 + 17 = 40

8. ) -16 + 29 = 13

9. ) 0 + 13 = 13

10. ) -19 + (-7) = (-26)

11. ) -26 + (-16) = (-42)

12. ) -26 + 17 = (-9)

13. ) 29 + (-29) = 0

14. ) 7 + (-14) = (-7)

15. ) 0 + (-8) = (-8)

RULES IN ADDING INTEGERS

Addition of two positive numbers (+,+)

-- In this rule, we will simply add the positive integers to get the answer.

-- The final answer will be positive.

(+a) + (+b) = (a+b)

Examples:

13 + 8 = 21
23 + 6 = 29

Addition of a positive number and a negative number (+,-)

-- The operation that we need to use in this rule is subtraction since the signs of the two integers are opposite.

-- The sign that has the greater value will be the sign of the final answer.

(+a) + (-b) = (a-b)

Examples:

4 + (-5) = (-1)
(-3) + 9 = 6

Addition of two negative numbers

-- Just like the first rule, we will add the two integers normally.

-- The final answer will be a negative integer.

(-a) + (-b) = -(a+b)

Examples:

(-2) + (-4) = (-6)
(-9) + (-6) = (-15)