Notes for Parent/Tutor

How to subtract two numbers up to 100.

  1.  Rename  Rename if the minuend Ones is less than subtrahend Ones (e.g. 3 Tens and 2 Ones renames to 2 Tens and 12 Ones)
  2. Subtract the Tens and Ones separately to get the difference
  3. Complete the answer

In 7 - 3 = 4, 7 is the minuend, 3 is the subtrahend and 4 is the difference.

The default setting is Subtraction without Renaming.

Based on the latest 2021 MOE Primary One Syllabus

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