A number can be divided to two decimal places by a single-digit whole number or by multiples of 10, 100 and 1000 using a standard written format and without a calculator.

There are several techniques which can be used when dividing by a single digit whole number.

Divide \(1920\) by \(8\,(1920 \div 8)\)

As \(2 \times 2 \times 2 = 8\) therefore to divide \(1920\) by \(8\):

\[1920 \div 2 = 960\]

\[960 \div 2 = 480\]

\[480 \div 2 = 240\]

Therefore \(1920 \div 8 = 240\)

Divide \(348\) by \(6\) (\(348 \div 6\))

As \(2 \times 3 = 6\) therefore to divide \(348\) by \(6\):

\[348 \div 2 = 174\]

\[174 \div 3 = 58\]

\[348 \div 6 = 58\]

A similar approach can be adopted for dividing by \(4\) (divide by \(2\) then divide by \(2\) again) and \(9\) (divide by \(3\) then divide by \(3\) again).

For some more complex divisions a more formal method is needed.