About this worksheet
Counting by tens helps children see 100 as ten equal groups instead of one very long string of single counts. The spoken pattern sounds simple, but children often say sixty after fifty and then lose the sequence, confuse sixty with sixteen, or omit ninety before 100. Pictures of tens rods make each spoken decade represent a real quantity. Missing-number paths then connect those groups to the numerals 10, 20, 30, and beyond. This worksheet starts with shorter runs at the support level and uses longer runs or backward reasoning at higher levels, while every question stays focused on equal groups of ten. Listen for clear decade words and watch whether your child recognizes the zero in the ones place. If a mistake appears, return to the picture and count each bundle as one ten rather than counting every small unit separately.
What your child will learn
- Say decade numbers in order
- Connect rods with groups of ten
- Find a missing decade
- Count forward or backward by tens
Worked example
Four tens rods are 10, 20, 30, 40. The rods show 40 altogether.
Common mistake
Mixing teen words such as sixteen with decade words such as sixty.
Helpful hint
Each step adds one group of ten, and every numeral ends in zero.