Basic 7
Lesson 1:
Using Multi-base Blocks
Lesson 2:
Using Graph Sheets
Lesson 3:
Using Multiples
Lesson 4:
Using Token Currency
Another way we can represent numbers is by using multiples of 10s, 50s, 100s and 200s. We can use the multiples of these numbers to expand larger numbers like 5,560.
Here, we will use only multiples of 10s, 50s, 100s and 200s to model numbers, but remember that you can use multiples of any other numbers to model.
Watch the lesson below and try your hands on the exercises that follow.
Example 1
Represent 5,560 using multiples of 10s, 50s, 100s and 200s.
Solution
To better understand this, let's use a table as below to do the expansion:
\(\therefore\) 5,560=(200 \(\times\) 20)+(100 \(\times\) 10)+(50 \(\times\) 11)+(10 \(\times\) 1)
Using multiples of \(\textbf{10s}\), \(\textbf{50s}\), \(\textbf{100s}\) and \(\textbf{200s}\) model the numbers below:
- 6,000,000
- 42,500,000
- 7,900,000
- 800,000
- 91,000,000
- 1,500,000
- 200,000
- 60,400,000
- 5,000,000
- 87,000,000
Test yourself on what you have learnt so far. Improve on your speed in solving questions.
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