Page 55 - monopoly
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Th H T O
9. Class III collected `7384 for donation to an
or phanage. The total money to be collected was
`9000. How much money is yet to be collected
by the class?
PROPERTIES OF SUBTRACTION
1. We cannot change the order of the number in subtraction.
For example, 6 + 3 = 3 + 6
But, 6 – 3 is not equal to 3 – 6.
2. On subtracting a number from itself, we get zero.
For example, 4 – 4 = 0 63 – 63 = 0
785 – 785 = 0 4536 – 4536 = 0
3. On subtracting 0 from a number, we get the number itself.
For example, 1125 – 0 = 1125
ADDITION AND SUBTRACTION TOGETHER
Example: Solve 6149 3098 2916 – + .
Solution: First we add 6149 and 2916. From the sum we subtract 3098.
Th H T O Th H T O
1 1 8 9 15 15
6 1 4 9 9 0 6 5
+ 2 9 1 6 – 3 0 9 8
9 0 6 5 5 9 6 7
55
Subtraction
Mathematics-3
