Partitioning
Split numbers into tens and ones, add each part, then put them back together.
Flashcard deck
The 11 and 12 times tables up to 12, split into ten times and a little more.
Ages 8–1224 cards
Tap a card to turn it over and see why.
Practising saves your boxes so each card comes back at the right time. You need a free account.
Start practisingSplit numbers into tens and ones, add each part, then put them back together.
Play it as a game
Print some practice