Multiplication of Numbers near to the bases

Base is nothing but numbers like 100, 1000, 10000, 100000..etc

Case 1:

Multiplication of Numbers Below the Base

a) 99 x 98

• 99 is one less from the base 100

• 98 is two less from the base 100

Here we ll get the answer in Two Parts.

One is LHS and another is RHS.

LHS is 97. RHS is 02. Answer is 9702.

Always ensure that the number of digits in RHS should be equal to the number

of 0’s in the Base.

b) 96 x 92

• 96 is less than 100 by 4

• 92 is less than 100 by 8

c) What is 88 x 86

d) What is 981 x 991

e) What is 9987 x 9994