Year 10 / Grade 10 • Daily Maths Drill
Real Numbers and Surds
Work with exact and approximate real-number forms including roots.
8 questions • 240-question rotating bank • 30 different sets before a full cycle repeats
8Questions
240Question bank
0Best score
💡 Quick Review
Real Numbers and Surds
Use exact forms when possible and approximate only when the task requires a decimal.
Key ideas
- rational/irrational
- surds
- roots
- approximation
- number comparison
Worked example: √50 = 5√2.
Common trap: Do not replace an exact surd with a rounded decimal too early.
Key words
real number — any number on the number line
rational — ratio of integers
irrational — not a ratio of integers
surd — irrational root kept in exact form
approximation — nearby value
How to use this drill: review the short notes when learning, then close them on later attempts and practise from memory. The rotating bank delays a full set repeat for 30 attempts on the same browser.