Question

the estimate value of 97 + 47 + 21​

Answer 1

Answer:

165 is the estimated value of you're question

Answer 2

Answer:

1) 97+47+21

100+50+20

100+70

170

Or

2) 97+47+21

97+68

165 rounded off or estimated to 170

But the first method is easier and more reliable.

Hope it helps you.

Please mark my answer as BRAINLIEST.