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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



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Lesson 1, Topic 2
In Progress

Counting in Millions, Billions and Trillions

Lesson Progress
0% Complete
Power of tenNumberName
31 000Thousand
61 000 000Million
91 000 000 000Billion
121 000 000 000 000Trillion

We use the words million, billion, and trillion for large numbers. They are connected as follows:

1 million = 1 thousand x 1000
1 billion = 1 million x 1000
1 trillion = 1 million x 1000

Example 1

Write 2 468 900 in words 

Solution 

2 000 000 = Two million 
468 000 = Four hundred and sixty-eight thousand
900 = Nine hundred 

Counting Numbers Example

Answer: 2 468 900 = Two million, four hundred and sixty-eight thousand, nine hundred.

 Example 2

Write the number 3 184 200 940 in words. 

Solution 

3 000 000 000 = Three billion 
184 000 000 = One hundred and eighty-four million 
200 000 = Two hundred thousand 
900 = Nine hundred 
40 = Forty 

Screenshot 2022 08 21 at 08.40.53

Answer: 3 184 200 940 – Three billion, one hundred and eighty-four million, two hundred thousand, nine hundred and forty. 

Example 3

Write eleven trillion eight hundred and one billion, three million, five thousand, and ninety-eight in figures. 

Solution 

Eleven trillion = 11  000  000  000  000
Eight hundred and one billion = 801  000  000  000
Three million = 3  000  000
Five thousand and ninety-eight = 5 098

Screenshot 2022 08 21 at 08.42.39

Answer: Eleven trillion eight hundred and one billion, three million, five thousand, and ninety-eight in figures

= 11,801,003,005,090

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