In this method the smaller number is partitioned (broken down into tens and units). \({27}\) is broken down into \({10}\), \({10}\) and \({7}\). The method of partitioning into tens, simplifies the ...

Voiceover: In a world without maths,a land where people forgot, who will save the day? Dave: And the winner of this year’s ‘Guess the number competition’ is Charlie.Well done, you guessed twenty five ...