Counting by 10s is an important skill young mathematicians need to master. When your child can count or chunk things by 10s, they can more easily and efficiently do math computations, and solve math problems accurately. Kids love mazes, and this free assessment worksheet will have them helping mom by pushing the big box back into the basement with their math skills. They'll count by tens to guide the path and successfully finish when they get to 100! All this while you'll be able to quickly see where their skill level is.