How much water and food do the heaviest animals in the world require?

An elephant needs $80$ litres of water in a day and $150 \mathrm{kg}$ of food.

A blue whale drinks $40$times the water and $6$ times the food required by an elephant in a day.

How much of water and how much of food does a blue whale require?
 

Multiply the following numbers.

$726\times 400$

Solve using the column method.

$\begin{array}{ccccc}& 9& 8& 4& 2\\ \times & & & & 5\\ & & & & \end{array}$

Multiply the following numbers.

$996\times 109$

Multiply the given number.

$395\times 900$

Solve using the column method.

$\begin{array}{ccccc}& 4& 2& 3& 3\\ \times & & & & 9\\ & & & & \end{array}$

Multiply

$206\times 507$

Find the product.

$658\times 94$

Multiply

$8251\times 40$

Solve using the column method.

$\begin{array}{ccccc}& 8& 5& 6& 0\\ \times & & & & 7\\ & & & & \end{array}$

Multiply the following numbers.

$363\times 850$

Multiply

$397\times 67$

Solve using the column method.

$\begin{array}{ccccc}& 8& 0& 6& 5\\ \times & & & & 4\\ & & & & \end{array}$

Multiply the following numbers.

$827\times 107$

Find the product.

$915\times 47$

Multiply

$837\times 328$

Multiply

$647\times 834$

Multiply.

$1498\times 90$

Multiply the following numbers.

$213\times 370$

Multiply the given number.

$519\times 300$