Knowing Our Numbers (Math) Close X  
  Exercise 1.3  «Prev Page 23
Question 1:

Estimate each of the following using general rule:

(a) 730 + 998 (b) 796 − 314 (c) 12, 904 + 2, 888

(d) 28, 292 − 21, 496

Make ten more such examples of addition, subtraction and estimation of their outcome.

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