Estimate the product by rounding and verify the result.

$709\times 98$

Estimate the quotient by rounding and verify the result.

$936÷7$

Estimate the quotient by rounding and verify the result.

$956÷17$

Estimate the quotient by rounding and verify the result.

$859÷23$

Estimate the quotient by rounding and verify the result.

$708÷32$

Write the following in numeral form.

Hundred crore hundred thousand and hundred.

Write the following in numeral form.

Twenty billion four hundred ninety-seven million ninety-six thousand four hundred seventy-two.

Write the following in words in both Hindu-Arabic and International system.

$8275678960$

Write the following in words in both Hindu-Arabic and International systems.

$5724500327$