Support
Need a hand? Here is how to get the most out of Subtraction Cards 2. If you can't find your answer, just email us.
How to play
Pick a mode
Choose In Order to learn step by step, or Shuffle for a random mix.
Flip the card
Look at the subtraction problem, say the answer, then tap or swipe to flip and check it.
Check yourself
Compare with the answer on the back, then move on to the next card.
Race the timer
Try Beat Your Time to finish a set quickly and top your personal best.
Check your progress
Tap My Progress to see your calendar, stars, streaks and weekly chart.
Frequently asked questions
What age is this app for?
It's designed for children roughly 6-9 years old who already know easy subtraction and are ready for borrowing, but anyone practicing subtraction can enjoy it.
Are there any ads?
No. There are no ads and nothing that interrupts learning.
Does it need the internet?
No. The app works fully offline.
What kind of problems does it cover?
It focuses on subtraction with borrowing (a two-digit number minus a one-digit number), with cards like 13 - 5 = 8 and 15 - 7 = 8.
Is my child's data collected?
No. Progress is stored only on the device. We don't collect personal data.