Question

Estimate the sum or difference

a. 4589 + 667

b. 4969 – 33

Answer 1

1) 5256

2)4936)

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Answer 2

it is estimation

so we take

4589 as 4500

667 as 700

so

A. 4500+700 = 5200

actuall answer

4589+667= 5256

so we take

4969 as 5000

33 as 30

so

B. 5000-30= 4970

actuall answer

4969-33= 4936

so hence it's proved