Free Tips to do Mantal Math Questions easy in 2011
Please find some tips to math questions easy. These tricks are easy to remember to do all match calculations. Everybody knows that if we want to multiply with any number with 10 or 100 you just add one or two 0 after that number. E.g. if you multiply 39 with 10, you just add one 0 to 39 to become 390. Here goes, the first one is easy. 1. To multiply any number by 4 all you do is double it, and then double it again. Example: 16 X 4. First Double the 16: 16 X 2 = 32 Then Double the 32: 36 X 2 = 64 2. To multiply any number by 5, just divide the number by 2, and then re-affix any necessary decimal points or zeroes. Example: 56 X 5. First Divide: 56 ÷ 2 = 28. Then Make sense? 18 is obviously too small to be the answer to 56 X 5. It's clear that the answer is somewhere in the 100s. So you add a zero to the 18 and you have the correct answer – 280. 3. To multiply by 9 An easy one - Simply multiply the number by 10, and then su...
