Respuesta :

Multiply without the decimal points, then put the decimal point in the answer.

639*7=4473

=447.3

Answer:

You solve is by multiplying 63.9*70

Step-by-step explanation:

First you multiply 9 times 0 which gives you 0. Then you multiply 3 times 0, which give you 0. Next you multiply 6 times 0, which also gives you 0. So you should get 3 0's. Then you cross out the 0 because you will no longer be using that. So then you add another 0 because you have to do standard algorithm. Next you multiply 9 times 7 which gives you 63. Then you carry your 6. Multiply 3 times 7 and add 6. After you multiply that, you add the 2 after you get 27 from 3 times 7 + 2. Then you multiply 6 times 7 and you will get 42 and add the 2 from when you multiplied 3 times 7 + 2. Your second number under the 0's should be 44730. Add and see what you will get. M final answer was 44730. If you get 4473, it is still the same thing as 44730. So don't get frustrated.