Question

Find the product of given numbers using box method of multiplication.

a) 24 and 28
b) 13 and 31

Answer 1

a)

x	20	4
20	400	80
8	160	32

In this method of multiplication,
we divide the numbers in tens and ones
24 is written as 20 and 4
28 can be written as 20 and 8
Total = 400 + 80 + 160 + 32 = 672

b)

x	10	3
30	300	90
1	10	3

In this method of multiplication,
we divide the numbers in tens and ones
13 is written as 10 and 3
31 can be written as 30 and 1
Total = 300 + 90 + 10 + 3 = 403