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29 May, 00:26

15. Explain how you can calculate each square

root mentally.

a) 31 x 31

b) 431 X 431

c) 17 squared

d) 432 squared

+4
Answers (1)
  1. 29 May, 01:29
    0
    Well perhaps if you know your times tables you would know. However, using a calculator is preferred
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