Adding two numbers less than 100 is easy. For instance, 29 + 45 = 74. However, how fast can you do it. Can you do at least sixty additions within one minute. Actually, you can do it, but, with some practices, using the simple technique that will be discuss in this article.
Multiplication of 2 numbers that are near to 100 or 1000
January 16th, 2009 | 3 CommentsThis tip is suitable for multiplying two numbers that are near to 100. For example, 103 x 104 and 97 x 98.
Multiplication of any number by a number near 100
January 15th, 2009 | 1 CommentIt is easy to multiply any number by 100. We just need to append two zeroes to the end of that multiplicand number. For example, 100 x 23 = 2300. But, what if the multiplier is a number that is near to 100, such as 101, or 99?
Simple division technique
November 6th, 2008 | No CommentsThis division technique can only be used if the divisor could be factorized.
Example 1:
272 ÷ 16 = 17
Remainder when a number is divided by a nine
November 3rd, 2008 | 3 CommentsDo you know that there is an easy way to find the remainder when a number is divided by 9?
