HOW TO MULTIPLY NUMBERS NEARBY TO 100?
TO multiply any numbers nearby 100 we need to follow few steps:
let us take an example of 99x98
step1:first observe the difference of 99 from 100
step2:Next observe the difference of 98 from 100
step3:then multiply both those differences and write them in tens and ones place
step4:then take a cross difference and write it down in next two places
ex 1:99x98
-1 -2
=>9702
ex 2:97x93
-3 -7
=>9021
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