Decimal Place Lab Game
Find the exact value of highlighted digits in decimal numbers.
Math puzzle challenges
Loading decimals challenge…
Instructions, device progress and accessibility
Choose Practice or UTC Daily mode and select a difficulty. Use keyboard, touch, Tab, and Enter with the controls. Wrong checks reduce score; Hint and Undo mark assisted rounds. There is no required sign-in, and results remain on this device.
Local progress is checked when play begins.
How to play Decimal Place Lab
Read each decimal carefully, find the highlighted digit, and enter its actual value. For example, the digit 7 in 2.070 is worth 0.07, not 7. Work through every row and check your answers.
The mathematics behind the game
Each step to the right of the decimal point divides the place value by 10: tenths = 1/10, hundredths = 1/100, thousandths = 1/1000 and ten-thousandths = 1/10000.
Worked example
In 5.306, the digit 3 is 3 tenths = 0.3, while the digit 6 is 6 thousandths = 0.006. Zeroes between digits do not change a digit’s place.
Tips to improve
Try Easy first to learn the steps without a timer. Move to Normal and Hard for larger numbers and more tasks. If you make a mistake, use Undo to reconsider the last move. A hint gives useful guidance but does not set an unaided personal best. Daily challenges offer the same seeded puzzle each UTC day on this device.
Frequently asked questions
Are trailing zeroes important in place value?
Trailing zeroes do not change a decimal’s numeric value, but they can show place positions and precision.
Do I enter the digit or its value?
Enter its place value, such as 0.04 for a 4 in the hundredths column.