Question

Estimate the product 475 × 225 rounding off each number to the nearest hundred.

Answer 1

In 475 the last two digits i.e., 75 is greater than 50.
Hence, 1 will be added to the 3rd last digit and the last two digits will become zero.
After rounding to nearest hundred we will get 500.
In 225 the last two digit i.e., 25 is less than 50.
Hence, the 3rd last will remain same and the last digit will become zero.
After rounding to nearest ten we will get 200.
Required product 500 × 200 = 1,00,000