Cryptarithmetic Puzzles for 2023, Puzzle #15 RACE + CAR = SPEED

The palindrome that we’ve probably all learned as our first introduction to palindromes: RACECAR. Well, now we have a puzzle! RACE + CAR = SPEED.

This one is should be doable by hand!

Solutions are below the image.

SPOILER SOLUTIONS!

RACE_first CAR_second SPEED_third
9483 849 10332
9573 759 10332
9753 579 10332
9843 489 10332
9584 859 10443
9674 769 10443
9764 679 10443
9854 589 10443
9685 869 10554
9865 689 10554
9786 879 10665
9876 789 10665