Bank ssc IBPS clerk and campus maths tricks
Bank ssc IBPS clerk and campus placement Multiplication tricks for Multiplying two numbers, so that you will be able to multiply two numbers within 5 to 10 seconds.That is why we have provided some types of multiplication tricks for IBPS and ssc exams. if you are doing preparation for Bank , SSC or other Competitive exams then this trick will really help you a lot in your exam preparation.From my point of view these tricks also known as speed math tricks and aptitude tricks or aptitude shortcuts
When both the numbers are less than 100
92*93
these two no. less than 100 by 8 & 7
100-(8+7) / 8*7
85 / 56
so the number is 8556
Note : The right hand side part should be always two digit number
other example : 98*96
100-(2+4)/2*4
94 / 08 (2*4=8 but from Note )
so the number is 9408
other differ example with carry : 85*92
100-(15+8) / 15*8
77 / 120 ( '.' right hand side part always be 2 digit so add 1 to 77)
so the number is 7820
When both the numbers are more than 100
example 104*112
100+(4+12) / 12*4
116 / 48
so the number is 11648
other example 102*103
100+(2+3) / 2*3
105 / 06 so number is 10506
When both the numbers are less than 200
196*192
200-(4+8) / 4*8
188 / 32 ( Note for base 200 multiply LHS by 2 )
188*2/32
so the no is 37632
When both the numbers are more than 200
208*211
200+(8+11) / 88
219 /88
219*2 / 88 ( Note for base 200 multiply LHS by 2 )
so the no is 43888
Similarly we can use 300,400....1000 base multiplication.
for 300 multiply LHS by 3
for 400 multiply LHS by 4.......
Some other fast multiplication tricks for IBPS bank exams:
When sum of unit digit is 10 & remaining digit is same.
43*47
4(4+1) / 3*7
4*5 / 21
answer: 2021
104*106
10*11 / 4*6
11024
When sum of ten's digit is 10 & unit digit is same.
46*66
(4*6)+6 / 6*6
30 / 36
3036
92*12
(9*1)+2 / 2*2
11 / 04
1104
When unit digit is 5 in both the numbers & difference between both numbers is 10
75*65 (Note : in this case RHS part always 75)
6*(7+1) / 75
48 / 75
4875
105*95
9*(10+1) / 75
9975
similarly you can solve 45*35 by above tricks.
ans : 1575
When both the numbers are less than 100
92*93
these two no. less than 100 by 8 & 7
100-(8+7) / 8*7
85 / 56
so the number is 8556
Note : The right hand side part should be always two digit number
other example : 98*96
100-(2+4)/2*4
94 / 08 (2*4=8 but from Note )
so the number is 9408
other differ example with carry : 85*92
100-(15+8) / 15*8
77 / 120 ( '.' right hand side part always be 2 digit so add 1 to 77)
so the number is 7820
When both the numbers are more than 100
example 104*112
100+(4+12) / 12*4
116 / 48
so the number is 11648
other example 102*103
100+(2+3) / 2*3
105 / 06 so number is 10506
When both the numbers are less than 200
196*192
200-(4+8) / 4*8
188 / 32 ( Note for base 200 multiply LHS by 2 )
188*2/32
so the no is 37632
When both the numbers are more than 200
208*211
200+(8+11) / 88
219 /88
219*2 / 88 ( Note for base 200 multiply LHS by 2 )
so the no is 43888
Similarly we can use 300,400....1000 base multiplication.
for 300 multiply LHS by 3
for 400 multiply LHS by 4.......
Some other fast multiplication tricks for IBPS bank exams:
When sum of unit digit is 10 & remaining digit is same.
43*47
4(4+1) / 3*7
4*5 / 21
answer: 2021
104*106
10*11 / 4*6
11024
When sum of ten's digit is 10 & unit digit is same.
46*66
(4*6)+6 / 6*6
30 / 36
3036
92*12
(9*1)+2 / 2*2
11 / 04
1104
When unit digit is 5 in both the numbers & difference between both numbers is 10
75*65 (Note : in this case RHS part always 75)
6*(7+1) / 75
48 / 75
4875
105*95
9*(10+1) / 75
9975
similarly you can solve 45*35 by above tricks.
ans : 1575
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