Question

Hi! i need help on mathematics, the subject is adding integers. create your own question. i am writing it down in my notebook!

Answer 1

a. Add 13 and 10:

As they have the same sign (both positives) you have an addition:

$13+10=23$

b. Add (-8) and (-12):

As they have the same sign (both negatives) it is an addition too (the result will have the same negative sign):

$(-8)+(-12)=-20$

c. Add (-5) and 4:

As they have different signs, (one negative and one positive) it is a subtraction, the result will have the sign of the greates number:

$(-5)+4=-1$

d. Add 7 and (-3):

As they have different signs (one positive and one negative) it is a subtraction. The result has the sign of the greatest number:

$7+(-3)=4$