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How do you multiply two-digit numbers in a decimal?
To multiply two digit decimal numbers, multiply the numbers as you would without the decimals. To put the decimal in the answer, count the number of decimal places in the two numbers and put the decimal in the answer that many places to the left. For example: 5.12 x 6.35 = 32.5120. If the numbers were 51.2 x 63.5, the answer would be 3251.20.
What are the numbers when you add you get -3 when multiplied you get 40?
There are no two real numbers that do. Using complex numbers, these two do: (-3/2 + i√151/2) & (-3/2 - i√151/2) Two numbers that add to -3 and multiply to -40 are -8 & 5 Two numbers that add to 3 and multiply to -40 are 8 & -5 Two complex numbers that add to 3 and multiply to 40 are (3/2 + i√151/2) & (3/2 - i√151/2)
How many prime numbers are between 80 and 95?
Two: 83 and 89.
What two numbers can you multiply to get 83?
They are: 1*83 = 83
What two numbers multiply to 77?
7 x 11
