This deep dive covers Types of Rounding within Rounding & Estimation for GCSE Mathematics. Revise Rounding & Estimation in Number for GCSE Mathematics with 13 exam-style questions and 6 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 3 of 5 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 5
Practice
13 questions
Recall
6 flashcards
Types of Rounding
| Type | What It Means | Example: 3.847 |
|---|---|---|
| 1 d.p. | 1 digit after decimal point | 3.8 (look at 4, round down) |
| 2 d.p. | 2 digits after decimal point | 3.85 (look at 7, round up) |
| 1 s.f. | 1 significant figure | 4 (from first non-zero) |
| 2 s.f. | 2 significant figures | 3.8 |