Odd Even Sudoku Puzzles (MSS #98,#99,#100,#101)

Again, these are the mini Sudoku puzzles that I prepared for the Sudoku Summer Camp for kids recently. In my previous post in the Mini Sudoku Series, I posted Even Odd Sudoku. There is not much difference between Even Odd Sudoku and Odd Even Sudoku. In one Sudoku type, all even numbers are grayed, and in Odd-Even Sudoku, all the Odd numbers are grayed. I want kids to understand the instructions and not assume only even numbers can be grayed. Anyway, all the puzzles in today's post are very easy and suitable for someone new to Sudoku who wants to learn Sudoku and its variations.

Today I am posting 4 puzzles in one post. I have experimented with the number of images to put in one post, as posting more images in one post may slow down the page downloading. Once I reach an optimal number, I will limit the number of images per post to that particular number.
The Odd-Even Sudoku puzzles I am posting in Mini Sudoku Series as 98th, 99th, 100th, and 101st Sudoku puzzles, respectively, in this series.