M2.1.2 For the adult

Thousands

How do I read and write a number like 4 205?

What this chapter teaches

Ten hundreds make a thousand. A 0 holds a place when there is nothing in it, so 4 205 is not 425.

Three questions to ask

There is no one right wording. Listen for the idea.

  1. How would you explain why 4 205 needs its 0?
  2. What do you think happens to the number if we take the 0 out of 4 205?
  3. Can you show me six thousand and forty with blocks or a drawing?

After the chapter, the learner can

  • Read and write numbers up to 9 999 in figures and words
  • Show 4 205 as 4 thousands, 2 hundreds and 5 ones
  • Explain what the 0 in 4 205 does

What they copy into their notebook

10 hundreds make 1 thousand. 4 205 is 4 thousands, 2 hundreds, 0 tens and 5 ones. The 0 holds the tens place. Without it you get 425.

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