4.A.1Read & write big numbers01/04
Read and write multi-digit numbers (to 1,000,000).
Step01of 04
Big numbers are organized into periods of three digits, separated by commas. Each period has its own ones, tens, hundreds — and a name.
| Ones period | →...,XYZ — ones, tens, hundreds |
| Thousands period | →XYZ,... — thousand, ten thousand, hundred thousand |
| Millions period | →XYZ,XYZ,XYZ — million, ten million, hundred million |