Write $94$ in Roman numerals.

Solve the given and write the answer in Roman numeral.

 $XCIV-XL$ 

Solve the given and write the answer in Roman numeral.

$LIX+XXXVI+IX$

Write $CLIX$ in Hindu-Arabic numeral.

Express the following Roman numeral as Hindu-Arabic number.

$\mathrm{CD}$.

Estimate the difference between by rounding off the numbers to the nearest hundred.

$6258-3125$

Estimate the difference between by rounding off the numbers to the nearest hundred.

$275-193$

Estimate the sum by rounding off the numbers to the nearest ten.

$23+687$

Estimate the sum by rounding off the numbers to the nearest ten.

$2397+6587$