Who is estimating? Addition

This task is about estimation for addition.

Your teacher will show you responses from five people who were asked to estimate this sum:

329 + 462 + 836

Some of them were estimating and some were not. For each flash card:

  1. circle either the tick or the cross in the box to show whether that person is / is not estimating; and
  2. explain your answer.
 

Estimating or Not? ( or )    (Circle one)

Explanation why they are estimating or not.

a)  
Sam
      

  

b)  

Aroha
      

  

c)  

Gina
      

  

d)  

Peter
      

  

e)  

Josef
      

  

 
 
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