Idea 11of 23Builds onMore digits means a greater number
Big numbers on a number line
Where does 63 000 sit on a line from 0 to 100 000?
Today you'll discover
- how to number the tick marks
- how halfway helps
- how to place a number between ticks
Think firstA number line from 0 to 100 000
Which point shows 63 000?
Decide first, then press Next. Find the size of one jump between ticks.
A number line from 0 to 100 000 with ten equal jumps and points A, B and C. The ticks are labelled 10 000 to 90 000, the 50 000 mark is drawn taller as halfway, and B is ringed: B = 63 000. The last step shows a line from 30 000 to 40 000 with ticks every 1 000.
See the whole ideathe big idea and the key word, in one place
The big idea
Use the ends and a benchmark like halfway to place a big number on a line.
Easy to get wrongCount the jumps between ticks, not the marks. From 30 000, the first jump lands on 31 000.
Key word
- benchmark
- a friendly number whose place you know, like halfway, used to place or compare others
Ready to use it?
- Place a big number on a number line.