Question

How many millions make a billion?

Answer 1

Step 1: Define the international number system

1. The international number system is a numbering system that groups numbers every three digits from right to left.
2. The place values in the first group are named units, tens and hundreds from right to left.
3. The next groups are named thousands, millions, billions, trillions, quadrillions, etc.
4. The place values in the latter groups are named their corresponding place value names with the first group suffixed by their group name. Example: In the number $723,456$, the place value names are as follows

$6\to$ Units, $5\to$ Tens, $4\to$ Hundreds, $3\to$ Thousands, $2\to$ Ten Thousand, $7\to$ Hundred Thousand

Step 2: Convert billions into millions

We know that,

$1$ billion$=1,000,000,000$

$1$ million$=1,000,000$

If we multiply $1$ million by $1000$, then we get $1$ billion.

Alternatively, you can divide $1$ billion by $1$ million to see how many millions make a billion.

So, $\frac{1,000,000,000}{1,000,000}=1,000$

Therefore, $1$ billion$=1000$ million.