|Class 6 Maths Whole Numbers||Properties of addition|
Properties of addition
For any two whole numbers a and b, their sum a + b is always a whole number.
E.g. 12 + 45 = 57
12, 45 and 57 all are whole numbers.
For any two whole numbers a and b, a +b = b + a We can add any two whole numbers in any order.
E.g 12 + 45 = 45 + 12
For any three whole numbers a, b and c, (a + b) + c = a + (b + c). , This means the sum is regardless of how grouping is done.
E.g 31 + (24 + 38) = (31 + 24) + 38
Additive identity property:
For every whole number a, a + 0 = a. Therefore ‘0’ is called the Additive identity.
E.g. 19 + 0 = 19
Question: Find the sum by suitable arrangement.