Question

Estimate the product $47\times 84$

• A. $600$
• B. $60$
• C. $4000$
• D. $2000$

Answer 1

The correct option is C $4000$

Rounding off $47$ to nearest ten we get $50$ as $7>5$

Rounding off $84$ to nearest ten we get $80$ as $4<5$

Estimating the product,

$50\times 80=4000$