Gradeless
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Math Defense

Math problems are falling on the city! Type the answer to shoot each one down before it lands.

Adding & Subtracting Facts · Grades K–1 · 8 levels · Free

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8 levels

  1. Add within 10
  2. Add within 20
  3. Add within 20, busier
  4. Take away
  5. Add and take away
  6. Add and take away, faster
  7. Times 2 to 5
  8. All three signs

What it practises

  • Single-Digit Addition
  • Single-Digit Subtraction
  • Times Tables (2s, 5s, 10s)
  • All Times Tables (1-12)

More Adding & Subtracting Facts 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