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JSS1: MATHEMATICS - 1ST TERM

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  1. Whole Numbers I | Week 1
    3 Topics
    |
    1 Quiz
  2. Whole Numbers II | Week 2
    1 Topic
    |
    1 Quiz
  3. Counting in Base Two | Week 3
    4 Topics
    |
    1 Quiz
  4. Arithmetic Operations | Week 4
    3 Topics
    |
    1 Quiz
  5. Lowest Common Multiple (LCM) | Week 5
    2 Topics
    |
    1 Quiz
  6. Highest Common Factor | Week 6
    1 Topic
    |
    1 Quiz
  7. Fraction | Week 7
    7 Topics
    |
    1 Quiz
  8. Basic Operations with Fractions I | Week 8
    3 Topics
    |
    1 Quiz
  9. Basic Operations with Fractions II | Week 9
    1 Topic
    |
    1 Quiz
  10. Directed Numbers | Week 10
    3 Topics
    |
    1 Quiz
  11. Estimation and Approximation I | Week 11
    3 Topics
    |
    1 Quiz
  12. Estimation and Approximation II | Week 12
    6 Topics
    |
    1 Quiz

Quizzes




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Topic Content:

  • Rounding Decimal Numbers to the Nearest Whole Number

To round a decimal number to the nearest whole number, look at the figure in the 1st d.p, if its is 5 or more round the whole number up, if it is less than 5, do not change the whole number.

Worked Example 12.2.1:

Round off:

i. 19.73
ii. 54.255 to the nearest whole number

Solution

i.

Screenshot 2023 08 19 at 13.22.18

 

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