🧮 Maths games · free, no sign-up
Estimation Station: how close can you get?
Play Estimation Station
Loading Estimation Station…
How to play Estimation Station
- Choose a level, then read the calculation. Do not work it out exactly.
- Round the numbers to friendly ones (47 becomes 50) and estimate.
- Type your estimate and press Check.
- Within 2% of the true answer is a bullseye (10 points); within 5% scores 8, within 10% scores 5, within 20% scores 2.
- After each question you see the exact answer and the quick way to estimate it.
Tips and strategy
- Round each number to one significant figure: 487 × 21 becomes 500 × 20.
- Do the rounded sum, then ask whether you rounded up or down, to adjust.
- For percentages, use 10% and 50% as anchors.
- An estimate is for checking an answer is sensible, not for exactness.
Keep playing
More games you might like
Maths games · Ages 6+NewMaths MeteorsSums fall from space. Type the answers to blast them before they land.
mental mathsadd and subtract
Play
Maths games · Ages 5+NewBubble Pop MathsPop the bubble with the right answer. 60 seconds, streaks and bonus points.
mental mathsestimation
Play
Maths games · Ages 6+NewMaths PracticePractise 126 maths skills for Grade 1 to 8 with instant feedback and a mastery score.
maths practicegrade 1 to 8
Play
Interactive lessons · Ages 9+NewPercentagesShade a 100 grid and see how percent, fraction and decimal connect.
percentagespercent of a number
Play
FAQ
Estimation Station: questions
What is estimation in maths?
Estimation means finding an approximate answer quickly, usually by rounding the numbers to simple ones, rather than working out the exact answer.
How do you estimate a multiplication?
Round each number to one significant figure and multiply the rounded numbers. For 48 × 21, use 50 × 20 = 1,000.
Why is estimating a useful skill?
It helps you check that an answer makes sense, plan quickly in everyday life and avoid big calculator errors.
What age is this game for?
About 9 and up. Level 1 uses two-digit multiplication and three-number sums; level 3 adds decimals, percentages and division.
Start a conversation
Questions about classes?
A parent or guardian can share the learner's age, level and goals, and we'll suggest a starting point and confirm the format before anything is booked.
- Tell us the learner’s age or grade and goals
- We’ll suggest a suitable class or learning path
- We’ll confirm format, timing and fees with a parent or guardian