Estimate the product 73 × 24. Round each factor to the nearest ten, then multiply.
Round the first factor to the nearest ten.
73 
× 
24 
= ? 




70 
× 
24 
= ? 
Round the second factor to the nearest ten.
70 
× 
24 
= ? 




70 
× 
20 
= ? 
Now multiply:
70 × 20 = 1,400
The product is approximately 1,400.
Compare your estimate to the exact answer:
73 × 24 = 1,752