Sums of 10: Challenge Page
Kindergarten · Addition within 10 · CCSS.Math.K.OA
- 7 + 3 = ___
- 6 + 4 = ___
- 6 + 4 = ___
- 6 + 4 = ___
- 2 + 8 = ___
- 7 + 3 = ___
This is the preview. Hit "Print this worksheet" above to open a clean, ad-free, one-page version with name and date lines and writing space for each problem. A separate answer key prints on the second page for the grown-up. Tear it off before handing the practice page to your child.
This printable worksheet gives Kindergarten students focused practice on Sums of 10, an essential building block within Addition within 10 and one of the milestone skills inside the Common Core CCSS.Math.K.OA cluster.
Because the worksheet is designed for independent practice, the directions are written in friendly student language and avoid teacher-only jargon. Mastery looks like solving most problems correctly without resorting to finger counting or repeated guessing.
Pair the worksheet with manipulatives (counters, base-ten blocks, fraction tiles, two-color discs) for students who still need concrete support before moving to abstract symbols. The concrete-pictorial-abstract progression is one of the most reliable moves in elementary math.
Want a different angle on this skill? Try the matching variants in our Kindergarten · Addition within 10 collection, or jump up to the cross-grade Addition within 10 hub.
We deliberately keep the layout uncluttered: a clean header, generous spacing for kids to show their work, and a problem grid that does not feel overwhelming. Elementary students get tunnel vision on busy pages, and that visual anxiety is often mistaken for a math gap.
This worksheet is aligned to Common Core State Standard CCSS.Math.K.OA and supports the broader Addition within 10 progression that students continue to build through later grades. The same skill is revisited each year with greater abstraction, so the work your student does on this single sheet feeds into the multi-digit and multi-step problems they will see in middle school.
Pair this Sums of 10 worksheet with the rest of the Kindergarten Addition within 10 collection for a focused practice block that covers the standard from several angles in a single afternoon.
Sample problems on this worksheet
- 7 + 3 = ___
- 6 + 4 = ___
- 6 + 4 = ___
- 6 + 4 = ___
- 2 + 8 = ___
- 7 + 3 = ___
How to use this worksheet
Print one copy per child on standard letter or A4 paper. Set a quiet 10 to 15 minute window. Hand your student a sharpened pencil and an eraser, and let them work top to bottom. The first row is a warm-up on purpose. The last row is a stretch on purpose. Sit with them as they finish so any misconceptions surface right away instead of getting practiced into a bad habit.
If your student finishes quickly, flip the page over and ask them to write two new problems of their own that target the same skill. It's a powerful retention move. If they get stuck, pull out manipulatives that match the skill (counters for early addition, base-ten blocks for place value, fraction tiles for fractions) and work through one or two problems together before letting them try the rest on their own.
Common Core alignment
This page targets CCSS.Math.K.OA inside the broader Addition within 10 progression. The skill is introduced earlier in elementary school through concrete representations and revisited each year with greater abstraction. To see how it develops across grade levels, visit our Addition within 10 hub. To see the rest of the Kindergarten work in this strand, visit the Kindergarten · Addition within 10 collection.