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Why do you add a zero to any whole number when multiplying by 10?
Wiki User
∙ 13y ago
There's no rule that says you have to do that, and you certainly aren't required
to do it if it makes you uncomfortable. You can perform the multiplication using
any other legitimate procedure. After a while, though, you'll begin to notice that
when you multiply any whole number by 10, the answer is always the same number
with a zero on the end of it. Eventually, you'll regret all the time you spent doing it
the hard way, and you'll adopt the easy way, out of convenience..
Wiki User
∙ 13y ago
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What is the rule for multiplying a number by 10?
Simply add one ZERO to the end of the number. If the number is a decimal, then move the decimal point one postion to the right.
What conjectures can you make by multiplying by powers of ten?
just add a zero
What is the sum of a number and zero?
If you add zero to any number, the sum is the same number you started with.
What is the name of the mathematical when you add two of the same number together?
When you add a number to itself, you are multiplying it by 2. The usual term for this is you are doubling the number.
When multiplying a number exponents that are squared do you add or multiply?
If the base numbers or variables are the same, you add the exponents.
Why does multiplying a whole number by 10 always add a zero to the right of the number?
That's a phenomenon that you notice after the fact. Try it out. Multiply any whole number by ten. 3 x 10 = 30 492 x 10 = 4920 It's the way the decimal system is structured. Ten to the first power is ten. Ten to the second power is one hundred. Since multiplying a number by ten adds a zero, the reverse is true. Adding a zero to the back of a number multiplies it by ten.
What is a short cut when multiplying a number by a multiple of 10?
Just add a zero after the number. 123 x 10 = 1230
What is 100 times 27?
2,700When multiplying by 100 just take the zero's off of the 100 and add them to the number you are multiplying. 27 becomes 2700 in this example.
What is the rule for multiplying a number by 10?
Simply add one ZERO to the end of the number. If the number is a decimal, then move the decimal point one postion to the right.
How do you converte a whole number into a decimal?
You can add a period, and a zero, after the whole number. Or you can just consider the whole numbers themselves a special kind of "decimal number".
What conjectures can you make by multiplying by powers of ten?
just add a zero
How do you get a fraction from a mixed number?
You multiply the denominator by the whole number, then you add what you got from multiplying the denominator by the whole number by the numerator! An example:13/4 would equal 7/4 as a improper fraction!
100 times 100?
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.
How do you figure out 2340 as a decimal?
If 2340 is a whole number then just add a decimal point and a zero -- 2340.0
When multiplying a number with exponents do you add or multiply the exponents?
You add exponents when multiplying. Ex: (xm) × (xn) = xm+n
What the number that is 10 times as big as 4250?
To multiply a whole number by 10, just add a zero...
When multiplying number do you add the exponents?
If you are multiplying powers of the same base (like 24 times 211), yes, you add the exponents.
