About Simple Subtraction
Subtraction is harder than addition for a reason that is rarely explained to children: addition can be done by counting on from either number, while subtraction requires holding one number still and counting down from it. This game keeps the numbers small enough that a child can still use fingers or objects, which is exactly what they should be doing at this stage, and builds toward doing it mentally.
What this game teaches
- Taking away within ten, then within twenty, then beyond
- Reading a subtraction sentence and understanding which number is the whole
- Counting back as a strategy
- Recognising that the answer is always smaller than the starting number
- Building toward recall of subtraction facts rather than recounting each time
How to play
- A subtraction sum appears on screen.
- Choose or enter the answer.
- Correct answers are confirmed and a new sum is drawn.
- Each level draws from a shuffled deck, so no sum repeats until the deck is used up.
Before you start
A child should be comfortable with counting to twenty and with simple addition before starting subtraction. If addition facts are still slow, work on those first - subtraction built on shaky addition is frustrating for everyone.
For teachers
The deck-based question generation means a child working through a level meets each sum once, which makes it usable as a short assessment rather than only as practice. Watch for children who consistently answer one more or one less than the correct value - that is a counting-boundary error, not a subtraction error, and is fixed differently.
For parents
Let your child use fingers or counters. Children are often told to stop using them too early, and the result is guessing rather than mental arithmetic. The move to mental work happens on its own once the facts become familiar.
Related games
- Bead Counting — Class 1-2
- Time Recognition Game — Class 2-5
- Cross Addition Puzzle — Class 3-6