**Addition Rules Summary –**

ADDING TWO ALIKE SIGNS – two positive numbers or two negative numbers

1. Add absolute values

2. Attach same sign to the answer

Example:

Adding two positives integers

4 + 5 = 9

Adding two negative integers

(-4) + (-5) = (-9)

ADDING TWO UNLIKE SIGNS

- 6 + 4 = ?

1. Subtract absolute values

2. Use the sign of the number with the larger absolute value

| - 6| = 6 | 4 | = 4

Remember to put the larger number first when subtracting two numbers. -- > 6 - 4 = 2

Six is larger. So, the answer will have a negative sign.

- 6 + 4 = - 2

**Addition Review -**

Add two positive integers and the answer will be ________________ .

Add two negative integers and the answer will be ____________________.

Add two integers with different signs by ___________________ the __________ values.

Then, the sign of the answer is determined by the integer with the _______________ absolute value.

**Practice Problems**

1. -23 + 23 =

2. -19 + 29 =

3. 42 + (-62) =

4. 34 – 46 =

5. -29 + 12 =

6. -57 + (-67) =

7. -88 + (-88) =

8. -30 + 49 =

9. 24 + (-32) =

10. 124 + 453 =

11. - 211 + 49 =

12. 59 + (- 87) + (- 5) =

13. (-4) + (-3) + 2 + (-1) =

14. (-18) + 5 + 23 + ( - 4) =

15. 45 + (-23) + 29 + (- 39) =