Octal Multiplication Example

1. Find multiplication of `(657)_8` and `(5)_8`

Solution:

4	3	4
	6	5	7
		×	5

4	1	5	3

Hints : (Move mouse over the steps for detail calculation highlight)

Step-1 : `657×5=?`
`1. 5×7=43.``:.` put down `3` and carry `4`
`2. 5×5+4=31+4=35.``:.` put down `5` and carry `3`
`3. 5×6+3=36+3=41.``:.` put down `1` and carry `4`

Answer = 4153

2. Find multiplication of `(323)_8` and `(53)_8`

Solution:

	2	1	1
	1		1
		3	2	3
		×	5	3

	1	1	7	1
2	0	3	7	0

2	1	5	6	1

Hints : (Move mouse over the steps for detail calculation highlight)

Step-1 : `323×3=?`
`1. 3×3=11.``:.` put down `1` and carry `1`
`2. 3×2+1=6+1=7.``:.` put down `7`
`3. 3×3=11.``:.` put down `1` and carry `1`

Step-2 : `323×5=?`
`1. 5×3=17.``:.` put down `7` and carry `1`
`2. 5×2+1=12+1=13.``:.` put down `3` and carry `1`
`3. 5×3+1=17+1=20.``:.` put down `0` and carry `2`

Answer = 21561

3. Find multiplication of `(647)_8` and `(201)_8`

Solution:

		1	1	1


			6	4	7
		×	2	0	1

			6	4	7
1	5	1	6	0	0

1	5	2	4	4	7

Hints : (Move mouse over the steps for detail calculation highlight)

Step-1 : `647×1=?` `1. 1×7=7.``:.` put down `7` `2. 1×4=4.``:.` put down `4` `3. 1×6=6.``:.` put down `6`	Step-2 : `647×0=?` `1. 0×7=0.``:.` put down `0` `2. 0×4=0.``:.` put down `0` `3. 0×6=0.``:.` put down `0`
Step-3 : `647×2=?` `1. 2×7=16.``:.` put down `6` and carry `1` `2. 2×4+1=10+1=11.``:.` put down `1` and carry `1` `3. 2×6+1=14+1=15.``:.` put down `5` and carry `1`

Answer = 152447

This material is intended as a summary. Use your textbook for detail explanation.
Any bug, improvement, feedback then Submit Here

3. Octal Multiplication