#Product of #numbers close to 100 Say, you have to multiply 94 and 98. Take their differences to 100: 100 - 94 = 6 and 100 - 98 = 2. Note that 94 - 2 = 98 - 6 so that for the next step it is not important which one you use, but youll need the result: 92. These will be the first two digits of the product. The last two are just 2×6 = 12. Therefore, 94×98 = 9212 Example 2: 95 x 97 ? 100-95=5, 100-97=3 95-3=92, 97-5=92 5 x 3 =15 Ans 9215
Posted on: Sat, 29 Nov 2014 09:13:28 +0000