5 x 789 = (5 x 700) + (5 x 80) + ( 5 x 9)
Oh, what a happy little question! To write 789 in expanded form, we simply break it down into its place values. So, 789 in expanded form is 700 + 80 + 9. Just like painting a beautiful landscape, breaking numbers into their parts can help us appreciate their beauty even more.
Zero out the Y to find X 3X - 2(0) = -789 3X = -789 X = -263 ------------- now to check you need to find Y, so zero out X 3(0) - 2Y = -789 - 2Y = - 789 Y = 394.5 0r 394 and 1/2 convert to fraction = 789/2 ------------ check 3(-263) - 2(789/2) = -789 -789 - 2(789/2) = -789 cancel one 2 and multiply through by that 2 -1578 + 789 = - 789 -789 = - 789 checks
Finding the product of 5x700 provides a benchmark for estimating the product of 5x789. Since 789 is close to 700, you can assume that 5x789 will be slightly more than 5x700. This allows you to quickly check your calculations for 5x789 by comparing it to the known product of 5x700, making it easier to verify accuracy.
789 x 789 = 622521.
789 on your mobile for Virgin Mobile UK.
1, 3, 263, 789.
789
0.0292
789 * 2.2 = 1,735.8
756 + 789 = 1545
789 + 456 = 1245
456 * 789 = 359,784