Number Builder - Puzzle Solver
iOS Universel / Education
Number Builder turns dice rolls into a hands-on way to practice mental math.
SOLVE MODE
Roll three dice, enter a target number, and see every way to combine your dice — using addition, subtraction, multiplication, division, exponents, and roots — to reach it. Great for checking your own work or discovering paths you hadn't thought of.
CHALLENGE MODE
Roll a set of dice and a target, then build the answer yourself — tapping dice and operators into place, left to right, with instant feedback when you're right. Six levels of difficulty take you from simple addition all the way up to exponents, fractional exponents, and roots, with targets up to 1,000.
Challenge mode includes 3 free puzzles to try. After that, it unlocks with a single one-time purchase — no subscriptions, and Family Sharing means one purchase covers your whole family.
BUILT FOR PRACTICE
Six progressively harder levels, each changing exactly one thing about the challenge
Customizable dice colors and styles
Full support for larger text sizes and VoiceOver
Solve mode stays completely free, no purchase required
No data is collected. No ads, ever.
Quoi de neuf dans la dernière version ?
Number Builder 2.0 is a ground-up rewrite with a brand new mode:
NEW: Challenge mode — roll dice and a target, then build your own answer across six levels of difficulty, from simple sums to exponents and roots
NEW: Customize your dice — pick a color theme and rendering style that fits you
Improved support for larger text sizes and VoiceOver throughout
A cleaner, redesigned look across every screen
Thanks for practicing with us — we'd love to hear what you think!
