Estimate the following products by rounding off each number to the nearest ten:

$49\times 52$

Estimate the following products by rounding off each number to the nearest ten:

$63\times 38$

Estimate the following products by rounding off each number to the nearest ten:

$27\times 54$

Estimate the following products by rounding off each number to the nearest ten:

$53\times 85$

Estimate the following product by rounding off each number to the nearest hundred

$477\times 213$

Estimate the following product by rounding off each number to the nearest hundred

$624\times 236$

Estimate the following product by rounding off each number to the nearest hundred

$333\times 427$