How to calculate a square root without a calculator

Finding the Closest Square Number. If you are given an approximate square root, you can easily estimate its approximate square number. Ex. 6 . If the approximate square root is 7.3, find its approximate square number. Learning Activity 5.2. 1. Use your benchmarking skills to estimate these roots. a) 7.75 b) 9.4 c) 13.3 d) 1.5 . 2. ................
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