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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

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Topic Content:

  • Writing Small Numbers
  • End of Lesson Evaluation Questions

Small numbers are numbers less than zero and are called decimal fractions.

e.g.  0.000 065,  0.004 etc.

To write small numbers, group them in three from the decimal point to the right.

e.g. 0.000000125 can be written as  0.000 000 125  

Worked Example 6.4.1:

Write these as decimal fractions and group the digits in three where 

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Evaluation Questions 1

Answers:

a. \( \scriptsize 10^2 \)

b. \( \scriptsize 10^3 \)

c. \( \scriptsize 10^{-3} \)

d. \( \scriptsize 10^{-4} \)

e. \( \scriptsize 10^{4} \)

Evaluation Questions 2

Answers:

a. 0.00 001

b. 0.01

c. 1000

d. 100 000

e. 10,000, 000

Evaluation Questions 3

Answers:

a. 230

b. 5346

c. 0.078

d. 0.000064

e. 10

Evaluation Questions 4

Answers:

a. 12 057 094 – Twelve million fifty-seven thousand and ninety-four.

b. 21 633 462 – Twenty-one million six hundred and thirty-three thousand four hunderd and sixty-two.

Evaluation Questions 5

Answers:

a.  68 100 001

b. 3 102 300 067

Evaluation Questions 6

Answers:

a. \( \frac{13}{1000} = \scriptsize 0.013\)

b. \( \frac{2}{100} = \scriptsize 0.02\)

c. \( \frac{3}{1000} = \scriptsize 0.003\)

d. 0.0003

e. 0.0004

f. 0.002 25

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