number · Year 3 · AC9M3N01
Place value: to thousands
Larger numbers use four columns: thousands, hundreds, tens and ones. Each spoken part names a column, not a new number to write in full. 'Two thousand and five' is 2 in the thousands column and 5 in the ones column, with zeros holding the empty hundreds and tens: 2005. An empty column still needs a 0 to keep the other digits in place — without it, 3040 collapses to 340 and every digit shifts.
Sample questions
Write one thousand two hundred and eighty-one using digits.
- 1 thousand, 2 hundreds, 8 tens, 1 one.
- 1000 + 200 + 80 + 1 = 1281.
Answer: 1281
Write three thousand five hundred and twenty-nine using digits.
- 3 thousands, 5 hundreds, 2 tens, 9 ones.
- 3000 + 500 + 20 + 9 = 3529.
Answer: 3529
Write three thousand and twenty-three using digits.
- 3 thousands, 0 hundreds, 2 tens, 3 ones.
- 3000 + 0 + 20 + 3 = 3023.
Answer: 3023