Add and Subtract 10 and 100 Worksheet – 2nd Grade Addition & Base 10

The Add and Subtract 10 and 100 Worksheet gives second grade students focused, no-prep practice with addition. It is a print-and-go math page that fits easily into a mini-lesson, a center rotation, or a quick review day.

Learning objective: By the end of this activity, students will be able to use their addition skills accurately and explain their thinking.

Why it works: Students stay on task because the directions are short and the practice is the right size for one sitting. Teachers save time because the page is ready to print and easy to check.

What's included:

• 1 printable worksheet page

• Clear, student-friendly directions

• 3 practice sections (Part A to Part C)

• Answer key (1 page)

• Cover page

How it's organized: The page opens with these directions: "Use mental math to add and subtract 10 and 100." The practice is split into 3 parts, so students can work through it in clear steps.

Grade level: Designed for second grade students. It also works well for first grade and third grade students who need extra practice or a fresh review.

How to use it: Assign it after a mini-lesson, use it in a small group, send it home as homework, keep it in your sub folder, or use it as a quick formative check.

Answer key: An answer key is included, so you can check work quickly or let students self-correct.

Teaching tips and variations:

• Send it home as homework so families can see what their child is learning in math.

• Model the first item together, then let students finish the rest independently.

• Pair students to compare answers and talk through any differences.

Skills covered: Addition, Base 10, Skip Counting, Subtraction, Math

Standards: Supports Common Core 2. OA.B.2, 2. NBT.B.5, 2. NBT.A.1, 2. NBT.A.2.

File type: PDF, ready to print.

Number of pages: 3 (1 worksheet page, 1 answer key page, 1 cover page).

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