BECE Mathematics 2012 Paper

500 g of meat, 850 g of fish and 900 g of eggs$\text{Total grams} = 500\,\mathrm{g} + 850\,\mathrm{g} + 900\,\mathrm{g} = 2250\,\mathrm{g}$Kilo means 1000, hence divide the grams by 1000 to obtain the kilograms.$2250\,\mathrm{g} = \frac{2250\,\mathrm{g}}{1000}=2.\overset{\text{⏜}}{2}\overset{\text{⏜}}{5}\overset{\text{⏜}}{0}\cdot 0=2.25\,\mathrm{kg}$Note1. Every whole number has .0 at the end which is not written. $2250=2250.0$2. When dividing by $1 n$ number of zeros, the result is the movement of the decimal point to the left $n$ times. 1000 has 3 zeros, hence the decimal point in 2250.0 is moved to the left three times.