Thursday , September 24 2020
Mathematics

NCERT 5th Class (CBSE) Mathematics: The Four Operations And Their Application

ADDITION AND SUBTRACTION

Properties of Addition:

  1. When you change the order of the addends, the sum does not change.
  2. The sum of any number and zero is that same number.

Adding large numbers is the same as adding smaller numbers. You start from the ones place and regroup (carry over) if necessary.

Properties of Addition - 1

Properties of Subtraction:

  1. Any number subtracted from itself is zero.
  2. When you subtract zero from a number you get the number itself.

Subtracting large numbers is the same as subtracting smaller numbers. Write them in the correct place and start subtracting from the ones place. Regroup if necessary.

Properties of Subtraction

Watch out for the zeros!

Watch out for the zeros-1

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