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JSS3: MATHEMATICS - 1ST TERM

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  1. Binary Number System I | Week 1
    5 Topics
    |
    1 Quiz
  2. Binary Number System II | Week 2
    6 Topics
    |
    1 Quiz
  3. Word Problems I | Week 3
    4 Topics
    |
    1 Quiz
  4. Word Problems with Fractions II | Week 4
    1 Topic
    |
    1 Quiz
  5. Factorization I | Week 5
    4 Topics
    |
    1 Quiz
  6. Factorization II | Week 6
    3 Topics
    |
    1 Quiz
  7. Factorization III | Week 7
    3 Topics
    |
    1 Quiz
  8. Substitution & Change of Subject of Formulae | Week 8
    2 Topics
    |
    1 Quiz
  9. Simple Equations Involving Fractions | Week 9
    3 Topics
    |
    1 Quiz
  10. Word Problems | Week 10
    1 Topic
    |
    1 Quiz



Lesson Progress
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Topic Content:

  • Converting Numbers in Base 10 to Other Bases

To convert from denary (i.e. base 10) to another base:

a. Divide the given denary repeatedly by the new base number.
b. Continue dividing until zero is obtained, writing down the reminder at every stage.
c. The answer is the Remainder (R) read upon wards (i.e. from bottom to top).

Worked Example 1.1.2:

Convert these numbers in base ten to base six

a. 43
b. 9054
c. 7054

Solution

a. 43

Screenshot 2023 08 21 at 14.08.47

=  111six

b. 9054

Screenshot 2023 08 21 at 14.13.24

=  105530six

c. 7054

Screenshot 2023 08 21 at 14.17.09

=  52354six

Worked Example 1.1.2:

Convert these numbers in base 10 to base two

a. 53
b. 38
c. 9

Solution

a. 53

Screenshot 2023 08 21 at 14.31.25

=  110101 two

b. 38

Screenshot 2023 08 21 at 14.33.12

=  100110two

c. 9

Screenshot 2023 08 21 at 14.36.58

=  1001two

Worked Example 1.1.3:

Convert these numbers to base 8

a. 768
b. 609

Solution

a. 768

Screenshot 2023 08 21 at 14.38.55

= 1400eight

b. 609

Screenshot 2023 08 21 at 14.40.00

=  1141eight

Worked Example 1.1.4:

Convert these numbers to base seven

a. 76
b. 405

Solution

a. 76

Screenshot 2023 08 21 at 14.41.12

=  136 seven

b. 405

Screenshot 2023 08 21 at 14.52.59

=  1116seven

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