Multiplication Fast Tricks: Here We have posted Multiplication tricks for Multiplying two numbers with base 100 , 200. After learning this Multiplication trick you will be able to multiply two numbers within 5 to 10 seconds.If you are doing preparation for Bank , SSC CGL and CHSL or other Competitive exams which includes Quantitative aptitude section, then this trick will really help you a lot in your exam .
Type 1 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
Type 2 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
Type 3 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
Type 4 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 and SSC CGl Exam:
Type 5 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
Type 6 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
Type 7 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
Type 1 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
Type 2 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
Type 3 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
Type 4 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 and SSC CGl Exam:
Type 5 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
Type 6 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
Type 7 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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