Get fast at a − b — count back, count up, and use your bonds
Set the start and how many to take away, then empty the ten-frame one dot at a time.
Start at
Take away
13 − 8 = ?
Counters left
13
Count back: Start at 13, step back 8 → you land on 5.
Count up: From 8 count up to 13: that is 5 steps. So 13 − 8 = 5.
🚀 Keep practising