This number challenge will help reinforce number sense in kids who've mastered their counting.

This cute little hermit crab is missing his sea shell. Connect the dots to give him a new home, and learn about odd numbers as you go!

Connect the dots from 1-50 to reveal a hovering helicopter.

Reinforce number recognition skills with this versatile number template.

Children will fill in the missing numbers from 63 to 72 in this sweet number sense worksheet.

Children will fill in the missing numbers from 46 to 50 in this sweet number sense worksheet.

Children will fill in the missing numbers from 95 to 100 in this sweet number sense worksheet.

Find out what animal with wings sleeps all day and awakens at night by counting by sixes to solve the connect the dots puzzle and complete the picture.

Help your first grader practice counting with a tugboat dot to dot.

Children look at nine sequences of numbers and fill in the missing ones.

Challenge your first grader by having her connect the dots from 1 to 50 to complete the picture of the friendly lion.

To catch a glimpse of the rocket, complete the color by number worksheet using the key below the picture. First graders will have a blast!

Find out what a coatimundi looks like by completing this connect the dots activity by counting by fives. Connect the dots to complete the picture!

To find out what type of tropical lizard is hiding behind the numbers, count by fives to connect the dots and complete the picture.

You can find out what type of animal is hidden in the picture by counting by twos to complete the dot-to-dot activity.

Challenge your second grader by having him complete the dot-to-dot worksheet by counting by fives to finish the picture. What animal is hidden in the numbers?

Children will practice counting from 1 to 40 as they complete this simple dot-to-dot worksheet.

Count and add the Halloween pictures in this simple addition worksheet!

Children will fill in the missing numbers to complete a hundreds counting chart in this number sense worksheet.

Count and subtract the Halloween pictures in this simple subtraction worksheet!

Count and add the Halloween pictures in this simple addition worksheet!

A giraffe dot-to-dot might be just the thing for your zoo lover. Try this giraffe dot-to-dot with your child, and be challenged with an added twist.

This donkey dot-to-dot worksheet challenges your child to count by twos. Try this donkey dot-to-dot with your child to strengthen his skip counting skills.

Are you curious to find out what a lemur looks like? You can by counting by twos to complete the connect the dots activity and finish the picture of the lemur.

Take countdowns to the next level with this two-digit backwards counting worksheet.

Your second grader will count, write and color while identifying odd and even numbers in the math lab.

In this Halloween maze, follow the even numbers out of this scary graveyard. But watch out -- there are odd numbers waiting to trip you up!

Count and add the Halloween pictures in this simple addition worksheet!

Boost your second grader's math skills without boring him! Challenge him to solve seven subtraction problems, and then identify which answers are odd and even.

Track down the word form of numbers with this engaging word search for first graders!