Tens Double Digit Addition Worksheet
This tens double digit addition worksheet gives 1st Grade students twelve column problems that add a two-digit number and a multiple of ten, with no regrouping. An answer key is included, so practice is quick to check.
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About this resource
Description
The tens double digit addition worksheet gives first graders focused practice adding a two-digit number and a multiple of ten. When a child adds 40 and 18, the ones digit never changes — only the tens column grows — and noticing that is the whole point of the standard. Working column problems like these builds the place-value thinking that later regrouping, mental math, and two-step word problems all rest on. Each problem is set in a tidy box so the ones stay under the ones and the tens stay under the tens.
Using this tens double digit addition worksheet is simple. Print one copy per student, read the directions together, and let children add the two numbers in each box and write the sum under the line. Twelve problems fill a single page, so most first graders finish in about ten minutes. The multiple of ten sits on top in some boxes and on the bottom in others, so children have to read each problem instead of following a pattern. A full answer key is included on the second page for quick checking.
What’s Included
- One printable page with twelve column addition problems
- Every problem adds a two-digit number and a multiple of ten
- No regrouping, so sums stay inside 100
- Boxed problems with place-value columns and a solid answer line
- A complete answer key on page two
Three Reasons This Helps Kids
- It makes place value visible. Adding a multiple of ten changes only the tens column, and seeing that twelve times in a row turns a rule into an observation the child makes on their own.
- It builds confidence before regrouping. Because no column carries, children can concentrate on lining the digits up correctly instead of juggling two ideas at once.
- It rewards reading, not guessing. The tens number moves between the top and bottom rows, so every box has to be read and solved rather than copied from the one above it.
Ideas for Teachers and Parents
Try having students say each problem out loud before they write: “sixteen plus thirty” quickly becomes “sixteen plus three tens,” which is how a child talks themselves into the answer. Base-ten blocks or a hundred chart beside the page turn the same twelve problems into a hands-on lesson — count on by tens and land on the sum. For early finishers, ask them to write one new problem of their own that follows the same rule, then trade with a partner. This 1st grade addition worksheet also works well as a warm-up, a homework page, or a quick check before you move on to regrouping.
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