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HomeQuestion 1FluencyCore
Original practice · Free Online RevisionSkill · rounding
Round 58,764 to the nearest thousand.
Number & ProportionFoundationMaths revision
Rounding and Estimation
Use place value, significant figures and bounds to judge sensible numerical accuracy.
Focus points
✓Round to decimal places and significant figures.
✓Estimate before calculating.
✓Interpret upper and lower bounds.
Orin
The Wise Owl
Guides study flow, revision planning, and calmer focus sessions.
Practice setQuestion lineup
Try each question first, reveal a hint when you need one, then check the worked answer. Mark them done as you go — finish the set to claim your chips.
8 revision questions
Question 2FluencyCore
Original practice · Free Online RevisionSkill · significant figures
Round 0.004786 to 2 significant figures.
Question 3FluencyCore
Original practice · Free Online RevisionSkill · estimation
Estimate 19.7 × 4.08 ÷ 0.51 by rounding each number to 1 significant figure.
Question 4FluencyCore
Original practice · Free Online RevisionSkill · bounds
A mass is 3.6 kg correct to the nearest 0.1 kg. State the lower and upper bounds.
Question 5FluencyCore
Original practice · Free Online RevisionSkill · error intervals
A length is 250 cm correct to the nearest 10 cm. Write the error interval.
Question 6ReasoningCore
Original practice · Free Online RevisionSkill · estimation reasoning
Without exact multiplication, explain why 398 × 51 is close to 20,000.
Question 7ApplicationStretch
Original practice · Free Online RevisionSkill · bounds application
A rectangle has length 8.2 cm and width 4.7 cm, each correct to the nearest 0.1 cm. Find the greatest possible area.
Question 8ChallengeStretch
Original practice · Free Online RevisionSkill · percentage error
A calculator gives 2.9987 for a quantity known theoretically to equal 3. Find the percentage error relative to 3.