Write a secret message and every letter gets an arithmetic sum. Players solve the sums to reveal it: math facts practice with a sentence as the reward.
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How this generator works
Make your first set of sums
01Write a message
Type the sentence players will uncover.
Every letter gets a sum of its own.
02Choose the maths
Pick the operations and how high the answers go, from small numbers for mental maths to answers up to 1000.
The numbers used in a sum can be bigger than its answer.
03Inspect the sums
The preview lists every sum, each with a button to swap just that one.
New sums rolls them all again.
04Play, then share
Online, players drag each answer onto its sum.
Share has the link, the QR code and the print options.
Print as a worksheet
Print the sums as a worksheet for the class, blanks and all, and the answer key for yourself.
Share it online
One link or QR code opens the activity in any browser, with no player accounts. Embedding needs a paid plan.
Save your activity first
Free to build, free to play. No account needed to try it. A free account saves your activity and covers 60 player sessions a month. One session is one player opening one activity.
Arithmetic sums with a secret message, for a first lesson, a weekly practice round or a birthday surprise: start from an example below and make it your own.