Do NOT use paper and pencil or a calculator.?
November 28, 2006 1:28am CST
Very tricky arithmetic! Note: This must be done in your head only . Do NOT use paper and pencil or a calculator. Try it: Take 1000 and add 40 to it. Now ! add another 1000 . Now add 30 .. Add another 1000 .. Now add 20 . Now add another 1000 Now add 10 .. What is the total?