mental arithmetic - addition, subtraction, multiplication and division; missing fact questions; place value questions up to 10000; geometry questions based around 2d and 3d shape properties; money questions; fraction, decimal and percentage questions; ...
Arithmetic average of the actual figures for the most recent past time periods is the forecast of the next time period. › Exponential smoothing - Also a short-range time series forecasting model. - The forecasted figure for the last period is modified by information about the forecast error ...