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Adding and taking away · Usually met around P1

Two-digit adding and taking away

From “Two-digit adding, no carrying” to “Column addition and subtraction”, step by step, each skill with its methods, worked examples and answers.

Skills in this topic, easy to hard

  1. Two-digit adding, no carryingTens with tens, ones with ones
  2. Adding and subtracting tensOnes stay put: just add or take the tens
  3. Two-digit addition with regroupingLeft to right: tens first, then ones
  4. Adding three numbersFind two that make 10 first
  5. Two-digit taking away, no exchangingTens, then ones; check by adding
  6. Two-digit subtraction with regroupingTake the tens first, then the ones
  7. Column addition and subtractionOnes under ones; start from the ones
Practise it in the game →Two-digit adding and taking away · Free to start, unlimited questions, no downloadAll maths topics →