Science, Maths & Technology
Rounding and estimation
...careful about the level of accuracy of an estimate. Example 5 Dave and Sally are planning to travel from Newcastle to London, then to Gloucester, then to Liverpool and finally home to Newcastle. Newcastle to London 282 London to Gloucester 104 Gloucester to Liverpool 146 Liverpool to Newcastle 170 (a) Make a rough estimate of the total distance travelled. (b) Petrol is...