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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:

  • Word Problems Involving Multiplication

This is the result obtained when two numbers are multiplied together.

N.B. When multiplying decimals, remove the decimal point before you multiply and replace it after multiplying.

Worked Example 3.2.1:

a. 8 and 6.5

Screenshot 2023 08 22 at 07.13.43

Worked Example 3.2.2:

b. 9.2 and -4.6

1d.p  × 1d.p = 2d.p’s (decimal places)

Screenshot 2023 08 22 at 07.03.29

Here, we also added the negative sign after multiplying. (+ × – = – )

Worked Example 3.2.3:

Find the product of \( \scriptsize – 3 \frac{1}{9} \: and \: – 4 \frac{2}{7} \)

 

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