Step-by-step Maths Level 5 · Place value to a million and decimals to tenths · Summary
Step-by-step Maths Level 5 Place value to a million and decimals to tenths: summary and key words
Part of the Step-by-step Maths Level 5 place value to a million and decimals to tenths chapter. Chapter overview · whole chapter on one page
Chapter summary
| Skill | Method |
|---|---|
| Value of a digit | Name the column, then digit × column value |
| Big numbers in words | Say the thousands, then the rest; use and before tens and ones |
| 10,000 more or less | Change the ten thousands digit by one; carry or borrow if needed |
| Rounding | Look one column to the right: 5 or more round up; then zeros |
| Tenths | The digit after the point is the tenths; 3.4 = 3 + 4/10 |
| Comparing decimals | Whole numbers first, then tenths |
Can you…?
- I can say the value of each digit in a number to 1,000,000
- I can read and write big numbers in numerals and words
- I can find 10,000 more and 10,000 less than a number
- I can round to the nearest 10, 100, 1000, 10000 and 100,000
- I can write and place decimals to tenths on a number line
- I can compare and order decimals to tenths
Key terms
- column
- a place in a number, such as hundreds or tens
- partition
- split a number into the value of each digit
- round
- make a number simpler, by counting to the nearest 10, 100 and so on
- tenths
- parts when a whole is split into ten equal parts
- decimal point
- the dot that separates the whole number from the tenths