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 Dependent Variable

 Number of inequalities to solve: 23456789
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# Multiplying Two Numbers Close to but less than 100

To multiply two numbers close to but less than 100, use the following steps:

• Find the difference of each of the numbers from 100.
• Multiply these differences; write as the last two digits of the answer on the right.
• Subtract the difference of one number from the other original number; write as the first two digits of the answer on the left.

Example:

98 Ã— 97 =

• Find the differences of each number from 100: 100 - 98 = 2; 100 - 97 = 3
• Multiply these differences and write as the last two digits of the answer. 2 Ã— 3 = 6. Since we need to use two digits, write 06.
• Subtract the difference of one number from the other original number. Either combination will work. 98 - 3 = 95 or 97 - 2 = 95. Write 95 as the first two digits of the answer.

98 Ã— 97 = 9506.