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

1 Answer
Jan 6, 2018

4210

Explanation:

A thousand =1000
Since there are 4 thousands, we multiply it by 4 to get #4000#
#4*1000 = 4000#

tens = 10
Since there are 21 tens, we multiply to get the total amount so:
#21*10=210#

Now we add it together
#4000+210=4210#