Practice and check
Worked example
Add the same step at every position, including the blanks.
10 + 10 = 20; 20 + 10 = 30
- 10 + 10 = 20; 20 + 10 = 30
Check answers after trying
1: 10 2: 20 3: 30 4: 40 5: 50 6: 60 7: 70 8: 80 9: 90 10: 100
Printed order
Tips for Parents
▸ Why It Matters Counting by 10s is the easiest pattern in the whole skip-counting series, because every answer is simply one of the numbers 1 through 10 with a zero added onto the end. There's no tricky mental addition required the way there is with 3s or 7s — just a number your child already knows well, dressed up with an extra zero. That makes this worksheet the perfect place to build confidence and enjoy an early win before moving on to trickier numbers like 3s, 6s, or 7s, where the jumps are less predictable. Getting comfortable with tens now also gives your child an early, intuitive feel for how our number system is built in groups of ten, which will matter across nearly every math topic that follows. ▸ Getting Started Have your child count out loud from 10 all the way to 100, ten at a time, and encourage them to notice out loud that they're really just counting 1, 2, 3... and sticking a zero on the end of each one. That connection to counting they already know well — plain counting from 1 to 10 — is exactly what makes tens such a natural and unintimidating starting point in this whole series. If your child enjoys rhythm or rhyme, saying the sequence in a sing-song way can also help the pattern settle in before pencil ever touches the page. ▸ If They Get Stuck If a blank like 30, 40, 60, 70, or 90 trips your child up, have them think of the nearest number already given on the path (10, 20, 50, 80, or 100) with its zero covered up, count forward by ones to the missing number's first digit, and then add the zero back on at the end. This two-step trick — drop the zero, count the small number, put the zero back — works for every blank on the page and is worth practicing out loud a few times until it becomes automatic. If your child still hesitates, physically covering the last digit with a finger can make the "just count to a small number" step feel much less abstract. ▸ Praise Points Praise your child for working through this worksheet quickly and confidently, since that ease is genuinely worth celebrating here rather than something to brush past. Mastering tens now is exactly what makes place value click later — the idea that the "3" in "30" really means three groups of ten, not just a digit in a certain spot. If your child notices the zero-adding shortcut on their own and names it out loud, that's a strong sign they're starting to see the pattern behind the numbers rather than just memorizing a list, and it deserves specific, direct praise.
What This Worksheet Builds
Counting by 10s (10, 20, 30, 40...) is the clearest bridge to place value in the entire skip-counting series, because only the tens digit changes with each step while everything else stays predictably the same. This worksheet lets your child practice that single, simple shift over and over, building an intuitive sense that a number like 70 is really just seven groups of ten. That intuition, built here in the easiest possible form, becomes the foundation for understanding two- and three-digit numbers, regrouping in addition and subtraction, and eventually multiplying by ten.
Next Step
If stuck, have them cover the ones digit with a finger and just watch the tens digit climb by one each time — 1, 2, 3, 4 — before uncovering the zero again. Once they've mastered this sheet, they will have rounded out the full 2s-through-10s skip-counting set, so it's a great time to try mixed review worksheets that combine several numbers together, or move on to place-value activities that build directly on what tens practice has already taught them.