Numbers are not required for human survival., People were counted and food was divided., Our most powerful telescopes are being used., The total number has been estimated at around 2 trillion., By the start of this year, thousands of galaxies had already been found., Bigger numbers will be discussed in our daily lives., Lots of creative thinking is going to be needed., ‘Millions’ and ‘billions’ weren’t discussed by early humans., We get taught how to do calculations..

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