1.21 - twenty one ~> twenty-one
2.19 - nineteen
3.51 - fifty one ~> fifty-one
4.99 - ninty nine ~> ninety-nine
5.43 - forty three ~> forty-three
Good job!
* Just remember to put a hyphen (-) with numbers that are made up of two words when you spell them.
Examples:
1. 74 - seventy-four
2. 22 - twenty-two
3. 35 - thirty-five

* Also, be careful with the spelling of 90 which is n-i-n-e-t-y.
Start your day with a smile. Happy Monday!