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The two numbers that satisfy these conditions are -5 and -2. When you add them together, you get -5 + (-2) = -7, which equals -10. When you multiply them, you get -5 * (-2) = 10. These two numbers meet the criteria of adding up to -10 and multiplying to 10.
None. The only numbers that multiply to 10 are +5 and +2, or -5 and -2. Neither of these pairs add to -10.
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First, multiply the original number by 10. Then multiply the original number by 2. Add the two answers that you got and you have just multiplied by 12. For Example: 7x12=(7x10)+(7x2) 70+14 84
The numbers are: 21 and -10
Apart from using a calculator, specifically if you multiply a whole number by a power of 10:* To multiply a whole number by 10, add a zero to the whole number. * To multiply a whole number by 100, add two zeros to the whole number. * Etc.
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