MathCal: Mental Math for Kids

Master mental math with fast handwritten calculation drills.
Designed so children can use it safely on their own, with no ads.
Perfect for building a strong foundation in elementary and junior high math.
Also great for daily brain training.

Build a daily learning habit
◎ Today's Drill, Today's Challenge, and Today's Lesson — free every day
◎ Daily picks matched to your child's grade
◎ Stamp the calendar when you finish — progress at a glance

Calculation Drills (22 in total)
◎ Handwritten calculation problem sets
◎ Single-digit math, fill-in-the-blank, and column math (add, subtract, multiply, divide)
◎ Fractions, decimals, big numbers, rounding, order of operations, and find-the-x
◎ Geometry drills: angles, area, and volume
◎ Units & time, ratios & speed, averages, and combinations
◎ Freely customize question settings (10 to 300 questions)
◎ Ideal for practicing carrying and borrowing
◎ Can display dot guides above numbers

Montessori Lessons (59 in total)
◎ Interactive arithmetic lessons using beads
◎ Covers fractions, decimals, column math, geometry, measurement, and proportion
◎ Understand how math works through hands-on manipulation

Safe by design
◎ No ads at all — safe and worry-free
◎ Use offline anytime, anywhere
◎ Designed so children can use it on their own
◎ Respects children's privacy: no data tracking

Pricing
◎ Today's drill, challenge, and lesson are free every day
◎ Unlock everything with a single one-time purchase