NUMBER MISSION ARCADE · FOUR WAYS TO LEVEL UP

Small challenges.
Big maths moves.

Pick your mission. Explore, make a move and see why it works. Fresh numbers, useful feedback and trophies to collect.

MISSION 01 · PLACE VALUE

Decimal Quest

Decode decimal names, compare matching grids and discover what every digit is worth.

Explore & earnEnter quest →

MISSION 02 · ORDER & COMPARE

Race Clock

Sort the finish times, slot new runners into the race and settle close decimal comparisons.

Two three-stage racesTake your lane →

MISSION 03 · COMMON MULTIPLES

Common Multiple Lab

Mark two sets of multiples, find their overlap and choose the smallest common multiple.

Hands-on gridsOpen the lab →

MISSION 04 · MULTIPLES

Multiples Sprint

Hunt every target multiple in a fresh grid. Race the clock or practise at your own pace.

Timed or untimedStart sprint →

Teacher notes & worksheet links

Decimal Quest: 20 questions per mission; worksheet page 1, questions 1, 2 and 3. Named decimals, tenths/hundredths/thousandths, digit values and equivalent decimals.
Race Clock: two full races per mission; page 2, questions 1, 2 and 4. Seven race times, five extra runners and comparisons using <, > and =. Smaller times mean faster runs over the same distance.
Common Multiple Lab: 16 investigations per mission; page 5, question 3. The worksheet pair 9 and 14 needs a search beyond 100: its LCM is 126. Use the next hundreds grid to continue. Yellow and green overlap in red; symbols also identify the sets.
Multiples Sprint: ten grids and 120 seconds, or untimed; repeated practice of multiples of 3, 4, 5, 6 and 9. Nine targets per grid; wrong taps cost three seconds. The clock pauses between grids and when the tab is hidden. Untimed practice is available.

Each app works offline after downloading the pack and opening index.html. Progress is anonymous and saved only in this browser. A shared device shares its trophy shelf. No student details or results are sent to a server. These are practice games; scores are not formal assessment records.