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JSS1: MATHEMATICS - 2ND TERM

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  1. Algebraic Processes | Week 1
    4 Topics
    |
    1 Quiz
  2. Simplification of Algebraic Expressions | Week 2
    4 Topics
    |
    1 Quiz
  3. Simplification of Algebraic Expressions 2 (Use of Brackets) | Week 3
    4 Topics
    |
    1 Quiz
  4. Simple Equations | Week 4
    1 Topic
    |
    1 Quiz
  5. Simple Equations II | Week 5
    3 Topics
    |
    1 Quiz
  6. Plane Shapes I | Week 6
    5 Topics
    |
    2 Quizzes
  7. Plane Shapes II | Week 7
    7 Topics
    |
    1 Quiz
  8. Plane Shapes III | Week 8
    7 Topics
    |
    1 Quiz
  9. Decimals and Percentages I | Week 9
    2 Topics
    |
    1 Quiz
  10. Decimals and Percentages II | Week 10
    3 Topics
    |
    1 Quiz



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Topic Content:

  • Using Letters to Represent Numbers

In Mathematics, we use letters of the alphabet to stand for numbers instead of boxes.

We write \( \scriptsize 10 \: + \: x \) instead of \( \scriptsize 10 \: + \: \boxed{?}\).

We can use any letter e.g. a, b, c, t, y, z etc.

Example 1.2.1:

Each sentence is true. Find the number that each letter stands for.

i. \( \scriptsize x = 2 + 7 \\ \rightarrow \scriptsize x = 9 \)

ii. \( \scriptsize y = 14\: – \: 4 \\ \rightarrow \scriptsize y = 10 \)

 

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