Addition maze (sums to 20)

Before handing out the worksheet, briefly introduce the concept with a short oral warm-up or a visual model on the board. Let students work through the first item together as a class, then finish the rest independently or with a partner, encouraging them to talk through their thinking: "What strategy are you using? How do you know that is right?" After completing the worksheet, review any missed problems together and discuss the reasoning rather than just the answer. For extra support, let students use manipulatives or draw pictures alongside the written problems. These two-digit addition worksheets work well as daily practice, homework, or a focused review activity.

These two-digit addition worksheets for 1st grade give students the structured, hands-on practice they need to build confidence and fluency. Students work through a range of problem formats, from visual models and diagrams to written equations and word problems, so they encounter two-digit addition from every angle. Each worksheet is designed to build on prior knowledge while introducing the level of challenge appropriate for 1st grade. Practicing two-digit addition at this stage strengthens the mathematical foundations that support more advanced concepts in later grades.

Yes, both. We made it for 1st Grade addition, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with two-digit addition. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.

It strengthens place value understanding by requiring students to add tens and ones separately before combining them.

Yes - base-ten blocks or bundled sticks help students visualize the tens and ones before transitioning to pencil-and-paper methods.

Yes, CCSS 1.NBT.C.4 specifically calls for adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10.

By the end of first grade, students should fluently add within 10 (CCSS 1.OA.C.6) and solve addition problems within 20 using strategies like counting on, making ten, and decomposing numbers. They should also add within 100 using place value understanding (1.NBT.C.4).

Start with adding a two-digit number and a one-digit number, then progress to two two-digit numbers. Use place value understanding: add the tens first, then the ones. Base-ten blocks and place value worksheets make this concrete before moving to abstract equations.

Key strategies include counting on from the larger number, making a ten (e.g., 8+5 becomes 8+2+3), using doubles (6+6=12) and near-doubles (6+7=6+6+1), and decomposing to known facts. Worksheets that practice each strategy separately help students build fluency.