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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:

  • Addition & Subtraction in Other Bases

Worked Example 2.3.1:

Solve the following:

a. 3042five   + 2103five
b. 2001three   + 1022three
c. 151.24six +   12.34six  + 20.11six
d. 53468 – 6378
e. 3002four – 2213four

Solution

a. 3042five   + 2103five

Screenshot 2023 08 21 at 21.44.49

Explanation:

1st Column (from right to left):  2 + 3 = 5. How many fives are there in 5? \( \frac{5}{5} \)= 1 remainder 0. Write 0 and carry 1 to column 2.

 

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