# A number is composed of 4 thousands and 21 tens. What's the number?

Jan 6, 2018

4210

#### Explanation:

A thousand =1000
Since there are 4 thousands, we multiply it by 4 to get $4000$
$4 \cdot 1000 = 4000$

tens = 10
Since there are 21 tens, we multiply to get the total amount so:
$21 \cdot 10 = 210$

$4000 + 210 = 4210$