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Q: What is the estimated product of 22 x 8?

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The estimated product of 7.81 x 5.85 is 8 x 6 = 48

0.0000000734 = 7.34 x 10^-8 ≈ 7 x 10^-8

14

x * -8 = -8x

42 x 8 = (40 x 8) + (2 x 8) = 320 + 16 = 336 Or, (20 * 8) + (22 * 8) ================and as many more ways as you can think of as long as the product = 336

The product of 8 x 8 is 64.

-8 x -11 + (-22) = 88 - 22 = 66

The product of 11 times 2 is 22

12 x 22 = 264

22 x 34 = 748

Suppose the smaller of the two numbers is x. Then the other number is x+22. Their product is x*(x+22) = x2 + 22x This has a minimum when 2x = -22 or x = -11. When x = 11, the two numbers are -11 and 11 with a product of -121.

Let x = the number 8x - 10 = 22

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