?

Function Machine

Numbers go in, the machine changes them, new numbers come out. Find the hidden rule, then run it backwards!

Missing Numbers & Function Machines · Grades 2–3 · 7 levels · Free

7 levels

  1. What comes out?
  2. Find the hidden rule
  3. Times machines
  4. Times itself
  5. Two-step machines
  6. Run it backwards
  7. Machine race, timed

What it practises

  • Function Rules (In and Out)
  • Working Backwards

More Missing Numbers & Function Machines lessons

Gradeless is free: short math and learning lessons for kids in kindergarten to grade 5, each one starting where your child is. For grown-ups