eg 12*32
12
32
multiply 2 and 2 = 4 this is the last digit of ur answer
then crossmultiply and add
1*2 + 2*3 = 8 second last digit of ur answer
then cut out the left side i.e 2 and 2 then multiple the remaining just like that i.e
1*3 = 3 this is the first digit of ur answer
therfore ur answer is 384
u can use this method to multiply n digit nos. but it gets a slight complicated.
- 0
eg 12*32
12
32
multiply 2 and 2 = 4 this is the last digit of ur answer
then crossmultiply and add
1*2 + 2*3 = 8 second last digit of ur answer
then cut out the left side i.e 2 and 2 then multiple the remaining just like that i.e
1*3 = 3 this is the first digit of ur answer
therfore ur answer is 384
u can use this method to multiply n digit nos. but it gets a slight complicated.
- 1
For eg 99 *98.
-The closest multiple of 10 to 99 and 98 is 100.
-So we take the difference of both nos. from 100.
- 99 98
-1 -2
-Then we multiply the differences : 02
and place them in the units place.
Then we cross-add 99 and -2 or 98 and -1
and place them in thethousands and hundreds place.
-Hence we get 9702.
- 1
eg 12*32
12
32
multiply 2 and 2 = 4 this is the last digit of ur answer
then crossmultiply and add
1*2 + 2*3 = 8 second last digit of ur answer
then cut out the left side i.e 2 and 2 then multiple the remaining just like that i.e
1*3 = 3 this is the first digit of ur answer
therfore ur answer is 384
u can use this method to multiply n digit nos. but it gets a slight complicated.
- 1
12
32 ?
multiply 2 and 2 ?= 4 this is the last digit of ur answer
then crossmultiply and add
1*2 + 2*3 = 8 second last digit of ur answer
then cut out the left side i.e 2 and 2 then multiple the remaining just like that i.e
1*3 = 3 this is the first digit of ur answer
therfore ur answer is 384
u can use this method to multiply n digit nos. but it gets a slight complicated.
- 1