What is 7,999,875,890 x 8,456,876,900,867
but isn't that cheating writeacher?
Writeacher says — Everyone needs to learn all the different tools at his/her disposal. You should know how to use paper and pencil, calculators, Google, wolframalpha.com, and any other online calculator. Why would you learn to use only one?
67,653,965,623,943,833,396,630 I love math, but this is the craziest problem I have ever had.
But the point is to see if you can mutiply. I did it on paper and above is what I got.
If the point was to " is to see if you can multiply" it could just as readily been achieved with a problem such as
48*176
but I guess they didn't just want you to use a calculator, since a standard calculator could not carry all the digits of the answer.
e.g. https://www.google.com/search?q=7%2C999%2C875%2C890+x+8%2C456%2C876%2C900%2C867&oq=7%2C999%2C875%2C890+x+8%2C456%2C876%2C900%2C867&aqs=chrome..69i57j6j69i60.1991j0j8&sourceid=chrome&ie=UTF-8
but, from the best there is .....
https://www.wolframalpha.com/input/?i=evaluate+7%2C999%2C875%2C890+x+8%2C456%2C876%2C900%2C867
Put those numbers into Google or a good calculator. So easy.
To find the product of 7,999,875,890 and 8,456,876,900,867, we can use a standard multiplication method. Here's how you can do it:
Step 1: Break down the larger number, 8,456,876,900,867, into its constituent digits and write them under the smaller number, 7,999,875,890:
7,999,875,890
×8,456,876,900,867
Step 2: Start with the rightmost digit of the smaller number (7 in this case) and multiply it with each digit of the larger number. Write the partial products one below the other, aligning them correctly:
7,999,875,890
×8,456,876,900,867
________________________
55,998,130,230
63,998,748,890
52,998,130,110
47,998,002,410
35,998,253,970
31,998,126,170
23,997,377,730
15,997,267,690
________________________
Step 3: Add up the partial products to get the final product:
55,998,130,230
+ 63,998,748,890
+ 52,998,130,110
+ 47,998,002,410
+ 35,998,253,970
+ 31,998,126,170
+ 23,997,377,730
+ 15,997,267,690
________________________
= 376,982,067,410
Therefore, the product of 7,999,875,890 and 8,456,876,900,867 is 376,982,067,410.