Question

$58\times 79$ can be estimated to as:

• A. $50\times 70$
• B. $60\times 70$
• C. $60\times 80$

Answer 1

The correct option is C $60\times 80$

Here, we have to estimate $58\times 79$.
Now, $58$ can be estimated to $60$
And, $79$ can be estimated to $79$ as shown:

So, $58\times 79\approx 60\times 80$.