___________
Maths
Informal and mental strategies for adding and subtracting two 3-digit numbers

Starter quiz

  • What is meant by the sum?
    • The answer to a multiplication question.
    • A calculation.
    • The difference between two numbers.
    • The total when numbers are added together.  ✓
  • 100 − 7 = ______
    • '93' ✓
  • What is the complement to 100 of 92?
    • '8' ✓
  • How far away is 97 from 100?
    • '3' ✓
  • Which of these base ten representations shows 68?
  • What number is being represented by base ten?
    What number is being represented by base ten?
    • 543
    • 345
    • 354  ✓
    • 453
    • 435
+