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JSS2: MATHEMATICS - 1ST TERM

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  1. Properties of Whole Numbers I | Week 1
    4 Topics
    |
    1 Quiz
  2. Properties of Whole Numbers II | Week 2
    4 Topics
    |
    1 Quiz
  3. Properties of Whole Numbers III | Week 3
    5 Topics
    |
    1 Quiz
  4. Indices | Week 4
    2 Topics
    |
    1 Quiz
  5. Laws of Indices | Week 5
    5 Topics
    |
    1 Quiz
  6. Whole Numbers & Decimal Numbers | Week 6
    4 Topics
    |
    1 Quiz
  7. Standard Form | Week 7
    3 Topics
    |
    1 Quiz
  8. Significant Figures (S.F) | Week 8
    4 Topics
    |
    1 Quiz
  9. Fractions, Ratios, Proportions & Percentages I | Week 9
    6 Topics
    |
    1 Quiz
  10. Fractions, Ratios, Proportions & Percentages II | Week 10
    4 Topics
    |
    1 Quiz
  11. Fractions, Ratios, Proportions & Percentages III | Week 11
    3 Topics
    |
    1 Quiz
  12. Approximation & Estimation | Week 12
    1 Topic
    |
    1 Quiz



Lesson Progress
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Topic Content:

  • Square Root of Decimals

To find the square root of decimals, change the decimals to fractions.

Worked Example 3.4.1:

Evaluate the following:

1. \( \scriptsize \sqrt {0.25} \)

2. \( \scriptsize \sqrt {0.64} \)

3. \( \scriptsize \sqrt {0.36} \)

4. \( \scriptsize \sqrt {12.25} \)

5. \( \scriptsize \sqrt {0.25 \: \times \: 0.64} \)

Solution

1. \( \scriptsize \sqrt {0.25} \\= \sqrt{\normalsize \frac{25 }{100}} \\ = \normalsize \frac{5}{10} \\ = \scriptsize 0.5 \)

 

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