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Unicus Olympiad Exams

How do we add two digit numbers without carryover?

  • Adding two-digit numbers without carryover is simple and fun!
  • You just add the numbers in the ones place, then add the numbers in the tens place.
  • If both numbers are small, the answer will also be small and easy!
Examples:
  • Adding 23 and 31:
    • Look at the tens: 2 + 3 = 5 (that's 50).
    • Look at the ones: 3 + 1 = 4.
    • So, 23 + 31 = 54.

  • Adding 14 and 25:
    • Tens: 1 + 2 = 3 (that's 30).
    • Ones: 4 + 5 = 9.
    • So, 14 + 25 = 39.

  • Adding 11 and 22:
    • Tens: 1 + 2 = 3 (that's 30).
    • Ones: 1 + 2 = 3.
    • So, 11 + 22 = 33.

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