Multiplying
By 101
When multiplying a 2 digit number by
101, simply write the number down twice.
53 x 101 = 5353.49 x 101 = 4949.
B. Sometimes there are variations of 101 like 201, 203, 104, etc. In problems like these you can use the following:
23 x 203 =_________.
a) Multiply 23 x 2 = 46.b) Multiply 23 x 3 = 69.
c) The answer is 4669.
When multiplying a 3 digit number by
101 the following rules apply:
1. Write down the last 2 digits of
the number.
2. Take the number in the hundred’s
digit and add back to the number.
453 x 101 =_________.
a) Write 53.b) 4 + 453 = 457. Write 457
c) The answer is 45753.
Ex [2] 998 x 101 =_________.
a) Write 98.b) 9 + 998 = 1007. Write 1007.
c) The answer is 100798.