Question

18 - 4 + 6 - 30

a. Regroup the integers.

b. Add and subtract.

c. Write the sum. 18 - 4 + 6 - 30 =

Answer 1

-10

Explanation:

Given the expression 18 - 4 + 6 - 30

Step 1:

Regroup the integers

= 18+6-4-30

= (18+6) - (4+30)

Step 2:

Evaluate the expressions in parenthesis (add the integers)

18+6 = 24

4+30 = 34

The expression becomes:

= 24-34

Step 3:

Take the differnce of the resulting expression

= 24-34

= -10

Hence the sum of 18 - 4 + 6 - 30 is -10