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
A=x^2+10x+24 you need two numbers that will multiply to 24 and add to 10 (x+4) (x+6) 4 and 6 add up to 10 and multiply to equal 24 A = n^2+n-2 you need two numbers that will add up to one and multiply to -2 (n+2)(n-1) 2 and -1 add up to 1 and multiply to equal -2
To find 10 percent of a number, multiply the number by 0.1. In this example, 2000000 x 0.1 = 2000000.
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.
to multiply a number by 10, all you have to do is add zeros at the end of the number. Below are examples: 10*1=10 10*10=100 10*100=1000
Multiply the three-digit number by the one's digit, or last digit, of the two-digit number. That is your first part. Now multiply by the second-to-last digit, or ten's digit, and multiply the result by 10. That is your second part. Add the two parts and that is your answer.
-10 and -3
7 & 3