24 + 18 + 20 + 22 = 84
138
491
The answer is 156. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.
-22
-22
The answer is 40.
-40
18+24+16+22 42+38 =80
The average of 18 and 22 is 18+22/2 = 20
22 + 20 + 16 + 6 + 4 = 68
20 multiplied by 22 is 440.
22 + 24 + 28 + 25 + 20 + 19 = 138