1. Literacy Research Memory Skill Practice Stretch!
Think of a real-life example of where you would round to one significant figure. This could be a use for significant figures in another subject in school!
Estimate, Approximate, Significant, Decimal, Accuracy
Learn the prime numbers from 1 – 50
Skill Practice
Stretch!
A tower block is 200m high to the nearest 100m, and 170m high to the nearest 10m.
Write down one possible height for this tower block.
Number
Level of accuracy
Rounded answer
19.372
2 d.p.
1 s.f
5 d.p.
2 s.f.
46320
2 s.f
3 d.p.
4.9043
23.405
3 s.f.