Numbers: Repeated Addition
Chapter: 3rd Maths : Term 2 Unit 1 : Numbers
Introduction to Multiplication Methods
Mutiplication of a number with other number can be done in the following ways.
(i) Dot multiplication
(ii) Repeated addition
(iii) Regrouping
(iv) Standard multiplication algorithm
(v) Lattice multiplication
Repeated addition:
Let us recall the repeated addition we have learnt in lower classes.
i) Find the total number of flowers.
We can find the total number of flowers as follows.
3 + 3 + 3 = 9
3 groups of 3 flowers make 9
3 × 3 = 9
ii) Find the total number of leaves.
4 + 4 + 4 + 4 = 16
4 × 4 = 16
iii) How many apples are there in four plates
There are four plates. Each has five apples.
Total number of apples = 5 + 5 + 5 + 5 = 20
5 × 4 = 20