Question

8. Mrs. Rossi wrote the following

clues for a mystery number.
It is a 4-digit number
. The tens are double the ones.
The thousands are double the
tens.
• The sum of the digits is 19.
What number is it?

Answer 1

8542

Explanation:

2 times 2= 4

4 times 2=8

8 plus 5 plus 4 plus 2=19