Answer:
11a. 3,117
11b. 33
Step-by-step explanation:
11a. -165 + 3217 + 65
The easiest way to do this would be,
-165 + 65 = -100 than -100 + 3217
-100 + 3217 is the same as 3217 - 100
-100 + 3217 = 3,117
11b. 173 + (-43) + (-97)
this is the same as 173 - 43 - 97
173 - 43 = 130 and 130 - 97 = 33
