Max Rescues Ships with Lighthouse Addition

About this Grade 2 Addition Drill

Addition is the foundation of all math your second grader will encounter for years to come. At ages 7-8, children's brains are ready to move beyond counting on their fingers and start recognizing number patterns and relationships. When your child practices addition fluently—solving problems like 7 + 5 or 12 + 8 quickly and accurately—they're building the mental math skills needed for subtraction, multiplication, and real-world problem-solving. This fluency also frees up mental energy, so instead of struggling with the computation itself, they can focus on understanding what a math problem is asking them to do. Whether it's combining scores in a game, counting allowance, or even a lighthouse keeper tallying supply shipments, addition shows up everywhere. Students who develop strong addition skills now approach new math concepts with confidence rather than anxiety.

What your student will practice

• Add two-digit and one-digit numbers with regrouping (e.g., 15 + 7)
• Recognize and apply commutative property (7 + 5 = 5 + 7)
• Fluently add two-digit numbers without regrouping (e.g., 23 + 14)
• Explain addition strategies using tens and ones place value

Common mistakes to watch for

Second graders often struggle with regrouping—they'll add 15 + 7 and write 12 instead of 22 because they forget to carry the ten, or they miscount when moving between tens and ones. Another frequent error is reversing digits after regrouping: solving 18 + 5 correctly in their head but writing 32 instead of 23. Watch for these signs: your child counts on fingers for every problem, shows inconsistent answers when solving the same problem twice, or can explain the answer aloud but writes a different number. These patterns tell you they need to slow down and touch or draw out the tens and ones, not rush to the answer.