Quality vs Quantity,Some free worksheets are not good quality - the pictures are fuzzy, backgrounds print grey or speckled - and children tend to notice these things. If you are using the worksheets to educate your child, you may want to choose good quality worksheets that encourage your child to produce good quality work. After all, its a little difficult to ask your child to color within the lines and work neatly when the worksheet they are filling in hasnt done the same.
The next step is learning to write numbers, and this is where mathematics worksheets become almost a necessity. Unless you have great handwriting, lots of spare time and a fair amount of patience, writing worksheets will help you teach this valuable skill to your child. Dot-to-dot, tracing, following the lines and other writing exercises will help your child learn how to write numbers. A good set of worksheets will include practice sheets with various methods to help your child learn to write numbers. Patterns and sequencing and basic addition and subtraction should follow on from counting and number recognition. By the time your child is starting kindergarten or school, they should be able to count to 20 with ease, write numbers, do simple addition sums, and have some understanding of patterns and sequences. Even if they are attending preschool, extra practice at home will help them improve their math.