Michelle
Date: Sunday 22 July 2018
Title: Positive Negative square root
1. What is positive square root of 144? 12 x 12 = 144
2. What is positive square root of 25? 5 x 5 = 25
3. What is positive square root of 81? 9 x 9 = 81
4. What is positive square root of 169? 13 x 13 = 169
5. What is positive square root of 100? 10 x 10 = 100
6. What is negative square root of 4? 4 ÷ 4 = 2, -2
7. What is negative square root of 256? 16 x 16 = 256, -16
8. What is negative square root of 324? 18 x 18 = 324, -18
9. What is negative square root of 49? 7 x 7 = 49, -49
10. What is negative square root of 225? 15 x 15 = 225, -225
Specialist -
What is negative and positive square root of 256? The answer is 13
The strategies I used were multiplication with 3 digital numbers, division and positive and negative.
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