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By noticing that 0.49 is very close to 1/2 , and 3.9 is quite close to 4 .
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What is the best estimate for 22 times 39?
Best estimate is 20 x 40 = 800 Actual answer is 22 x 39 = 858
What is 39 - x equals -19?
58
What is 39 percent of 37?
x = 39% * 37 x = .39 * 37 x = 14.43
Estimate the product of 39 and 41?
(x-1) (x+1) = x2 - 1. So 39 (= 40-1) times 41 (= 40+1) is 402 - 1 = 1600-1 = 1599. THE ANSWER ESTIMATED IS 1,600
How do you estimate the product by rounding both factors to the greatest place value 1100x 39?
1000 x 40 = 40,000
What is the best estimate for 22 times 39?
Best estimate is 20 x 40 = 800 Actual answer is 22 x 39 = 858
What is the closest estimate of 39 x 22?
The closest estimate is the exact value.39*2 = (40 - 1)*2 = 80 - 2 = 78Then 39*22 = 39*2*11 = 78*11 = 858[Multiplication by 11 give the digits 7, 7+8 and 8 - with the carry overs applied to the answer.]
What is the 39 times tables?
0 x 39 = 0 1 x 39 = 39 2 x 39 = 78 3 x 39 = 117 4 x 39 = 156 5 x 39 = 195 6 x 39 = 234 7 x 39 = 273 8 x 39 = 312 9 x 39 = 351 10 x 39 = 390
What multiples equal 39?
39/1
What is the telephone area code for Padua Italy?
The telephone country code for Italy is +39. The area code for Padova (Padua) is 049, or +39 049 in international format. Note: unlike most countries, you DO NOT drop the trunk prefix 0 from the Italian domestic area code when putting the number in international format.
What can be multiplied to get 39?
39 = 1 x 39, 3 x 13, 13 x 3, 39 x 1.
If x is 3 what is 39 times x?
x=3 (39)(x) = (39)(3) = 117
What is equivalent to 39 times 26 plus 39 times 13?
(39 x 26) + (39 x 13) = 39 x 39 = 1521
What is 39 - x equals -19?
58
What is 39 percent of 37?
x = 39% * 37 x = .39 * 37 x = 14.43
What two multiples can get you 39?
3 x 13 = 39 1 x 39 = 39
Estimate the product of 39 and 41?
(x-1) (x+1) = x2 - 1. So 39 (= 40-1) times 41 (= 40+1) is 402 - 1 = 1600-1 = 1599. THE ANSWER ESTIMATED IS 1,600
