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.
13
= 1
23
= 8
33
= 27
43
= 64
53
= 125
63
= 216
73
= 343
83
= 512
93
= 729
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 = ?
Thanks.
