Spark & Anvil Privacy

SlatePals

Smudge's working has one wrong line. Find it, fix it, and tell Smudge why.

Cast, stories & more

Meet the cast — the characters who teach this

  • Smudge works sums line by line and makes the mistakes real learners make; learns each rule when you tell it
  • Tenby An owl who carries - when a column makes ten or more, Tenby carries the ten to the next column
  • Lendle A squirrel who lends - when the top digit is too small, Lendle lends a ten and crosses out so the next column has one less
  • Slotty A mole with a burrow for every digit - ones live under ones and tens under tens, so three tens and four ones make thirty-four

What next? Pick a door

Chosen from what this app is about. What you open is remembered on this device only.