![]() Quickly square a two-digit number that ends in 5 That is also the answer to the original equation.Ĩ. ![]() Step 2: Divide 23.5 by the number 2, the answer is 11.75.Step 1: Move the decimal point over by one place, 235 becomes 23.5.For instance, to find out what 5% of 235 is, follow this method: Percentageįinding a percentage of a number can be somewhat tricky, but thinking about it in the right terms makes it much easier to understand. Here is an example for the equation 11 x 88 ![]() If the numbers in the center add up to a number with two digits, insert the second number and add 1 to the first one. Now add those two numbers together and put the result in the center: Take the original two-digit number and put a space between the digits. There is also an easy trick for multiplying any two-digit number by 11. The trick to multiplying any number by 10 is to add a zero to the end of the number. The number 7 is the second number in the answer to the equation. Step 2: Subtract that number from the number 9. The number 2 is the first number in the answer to the equation. Step 1: Subtract 1 from the number that is being multiplied by 9. This is an easy method that is helpful for multiplying any number by 9.
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