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You just multiply them one digit at a time. Let us say, you want to multiply 12 by 34. Of course, a calculator can do this for you very quickly, but let us say you would like to be able to do it by hand. We can break up the number 12 into a 2 and a 10. So, 2 x 34 is 68, that's easy. (Or if you like, you can do it as 2 x 30 = 60, and 2 x 4 = 8, and 60 + 8 = 68.) Then 10 x 34 = 340. Then add the two results, 340 + 68 = 408. Done.
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Is multiplying decimals and whole numbers similar?
Very.
How is multiplying integers is like multiplying whole number?
In every possible way- because whole numbers and integers are the same.
Is the product of any two whole numbers?
the product is the outcome of multiplying 2 numbers, whole, decimal or integers.
How do you do multiplication whole numbers?
Multiplication is nothing but repeated addition.We multiply whole numbers by referring to their multiplication tables and also by multiplying first the layer digit, then carrying off and then multiplying all the digits successively.
What is estimating NOT as helpful when multiplying very small numbers?
It is - if you use appropriate rounding. Rounding does not have to be to whole numbers.
