Maths Revision

Today I am doing revision on calculating temperature changes on a thermometer.

Basically its a vertical number line used to work out the sum of negative and positive numbers.

Its useful to see how one can use maths in real life for working out things like thermometers and temperature changes.

Image Ref: http://www.topnews.in/discovery-protein-thermometer-may-aid-fight-against-bacteria-2175388