682 x 790 is 538,780, in order to get our estimate how ever we can round our 682 to 700 and our 790 to 800. 7 x 8 is 56. In total there are 40 zeros in this equation, so we would have 560,000. This means that an estimate would be 560,000 and a exact amount would be 538,780. Our acutal answer and estimate are not to far of when using mathical terms.
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