Chapter 1

Writing Numbers

We can write numbers with digits like 305, or in words like 'three hundred and five'. Let's practise!

Numerals and words

We can write a number two ways. In numerals we use digits, like 305. In words we write it out, like "three hundred and five". Both mean the same amount. We write numerals on price tags and words on cheques, so it is useful to know both ways well.

Key idea

Say the hundreds, then the tens, then the ones. Use "and" after the hundreds. A 0 is not read, but keep it in the digits.

Let's write one

Take 428. There are 4 hundreds, 2 tens and 8 ones. In words it is "four hundred and twenty-eight".

Worked example

Write "six hundred and nine" as a number. Six hundreds is 600, there are 0 tens, and 9 ones. So we write 609, not 69. The 0 in the tens place keeps the 6 in the hundreds place.

Remember

  • Match each word to its place.
  • Do not forget the 0 as a place holder.
  • Read hundreds, then tens, then ones.

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