Question

Add the following integers:

1. 1+ 9 =
2.(-7)+ - 4 =
3. 15 + (-7)=
4. (-23) + 5 =

Answer 1

When adding integers, the rules depend on the signs of the numbers. Positive + Positive = Positive, Negative + Negative = Negative, Positive + Negative = Subtract smaller number from larger number and use sign of larger number.

Step-by-step explanation:

1. 1 + 9 = 10
2. (-7) + (-4) = -11
3. 15 + (-7) = 8
4. (-23) + 5 = -18

In the first example, when two positive numbers add, the answer is positive. In the second example, when two negative numbers add, the answer is negative. In the third example, when a positive and a negative number add, you subtract the smaller number from the larger number and use the sign of the larger number. In the fourth example, you add a positive and a negative number by subtracting the smaller number from the larger number and using the sign of the larger number.