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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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Lesson Progress
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Topic Content:

  • Rounding Off to the Nearest:
    • Tens, Thousands, Hundreds, Millions
  • Evaluation Questions
Screenshot 2023 08 21 at 05.48.30
Screenshot 2023 08 21 at 05.04.34

Worked Example 8.2.1:

Round off 745 809 259 to the nearest:

i. ten
ii. hundred
iii. thousand
iv. million

Solution

i. 745 809 259 to the nearest ten

Screenshot 2023 08 21 at 05.25.50

= 745  809  260  to the nearest ten

ii. 745 809 259 to the nearest hundred

Screenshot 2023 08 21 at 05.26.33 1

= 745 809 300 to the nearest hundred

iii. 745 809 259 to the nearest thousand

Screenshot 2023 08 21 at 05.27.49

= 745 809 000 to the nearest thousand

iv. 745 809 259 to the nearest million

Screenshot 2023 08 21 at 05.24.52

= 746 000 000 to the nearest million

Evaluation Questions:

1. Round off the following to the nearest:

i. ten
ii. hundred
iii. thousand
iv. million

a. 79 036 259
b. 8 328 259
c. 5 999 925

View Answers
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Evaluation Questions

Answers:

a.
i. 79 036 260
ii. 79 036 300
iii. 79 036 000
iv. 79 000 000

b.
i. 8 328 260
ii. 8 328 300
iii. 8 328 000
iv. 8 000 000

c.
i. 5999 930
ii. 5 999 900
iii. 6 000 000
iv. 6 000 000

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