Today, I am sharing the shortcut tricks by which you can make cube of a number. In my previous two article I shared you the shortcut tricks of “how to find square of any number”. But today I am able to show you this trick only for some numbers (1-20 & 90-110). Just follow the rules how number makes cube. I am trying to find out the shortcut trick for other numbers. Whenever I will find it, I will share you.
How to Find Cube of a Number
Rule: 1 Number from 1 to 10
Please don’t use any rules for these numbers. Try to memorize.103 = 1000
Rule: 2 Number Close to 10
10 + 3X | 3X2 | X3 (X will take -Value when the number is below 10 or vice versa & the digit will be one after | )
If we find the cube of 12 (close to 10), then
123= 10 + 3X | 3X2 | X3
123 = 10 + 3.2 | 3.22| 23
123 = 10 + 6 | 3.4| 8
123 = 16 | 12| 8
123 = 1728
If we find the cube of 16 (close to 10), then
163= 10 + 3X | 3X2 | X3
163 = 10 + 3.6 | 3.62| 63
163 = 10 + 18 | 3.36| 216
163 = 28 | 108| 216
163 = 28 | 129| 6
163 = 4096
Rule: 3 Number Close to 100
100 + 3X | 3X2 | X3 (X will take -Value when the number is below 100 or vice versa & the digit will be two after | )
If we find the cube of 105 (close to 100), then
1053= 100 + 3X | 3X2 | X3
1053 = 100 + 3.5 | 3.52| 53
1053 = 100 + 15 | 3.25| 125
1053 = 115 | 75| 125
1053 = 115 | 76| 125
1053 = 1157625
If we find the cube of 96 (close to 100), then
963= 100 + 3X | 3X2 | X3
963 = 100 - 3.4 | 3.42| -43
963 = 100 - 12 | 3.16| -64
963 = 88 | 48 | -64
963 = 88 | 47 | 36
963 = 884736
Rule: 4 Number Close to 20, 30, 40, and 50
Coming soon.N.B. : Don’t try these tricks for other numbers.
Questions from this topic:
Q.1: 1053 + 153 + 53 = ?
Q.2: 953 - 53 + 153 = ?
Q.3: 1093 = ?
Q.4: 13+ 113= ?
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