Question

How do basic facts and patterns help me multiply a number by a multiple of 10

Answer 1

Answer:

Multiplying a number by 10 makes calculations much easier

Step-by-step explanation:

To multiply a number by $10^{n}$, add n zeroes to a number.

For example, 25×1000=25×10³=25000

Consider the following pattern:

$5\times 10=50\\5\times 10^2=500\\5\times 10^3=5000\\5\times 10^4=50000\\5\times 10^5=500000\\5\times 10^6=5000000$

So, basic rules of multiplying a number by 10 makes calculations much easier.

Foe example consider the following example:

$26\times 20\times 30=26\times (2\times 10)\times (3\times 10)=26\times 6\times 100=15600$

Answer 2

It makes your life easier.One way is by just adding a 0 after the number.
Ex 2*10 is 20 see what I mean.