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# Add or Subtract 10 or 100 Bundle with Games

2nd Grade • Lesson Plan Bundle
$4.00

## Quick Facts

Subject: Math, Numbers and Operations in Base Ten

Type: Lesson Plan Bundle

Skills:

- Work in collaborative groups to practice using the "language" of math for adding and subtracting numbers 10
- Locate patterns on a number grid and discuss how place value can help find 10 and 100 more or 10 or 100 less than a number without counting
- Explain their reasoning on how they find 10 or 100 more or 10 or 100 less than a number
- Solve equations adding 10 or 100 and subtracting 10 or 100 using mental math
- Play 3 different games: "Spin, Add, or Subtract," "What's My Number?," and "Flip and Solve" to practice solving equations adding 10 or 100 and subtracting 10 or 100 using mental math

Materials Needed:

- Pencils
- Small sticky notes or counting chips to cover up numbers on number grid
- Student whiteboards, dry erase markers, erasers (1 per student)
- Deck of cards (number cards only-remove face cards) (1 per small group of students)
- Brads and paperclips to make spinners
- Document camera or whiteboard

Printable Resources:

- “Number Grid 101-200” (1 copy per student) (1 for display)
- “Mental Math” (1 copy per student) (1 for display)
- “Spin, Add or Subtract” (1 copy per pair of student)
- “What’s My Number?” (1 copy per pair of students)
- “Flip and Solve” (1 copy per pair of students)
- “Exit Slips” (as an optional assessment component) (1 copy per student)

CCSS: 2.NBT.1, 2.NBT.8

File Type: PDF Document

## Lesson Plan Description

In this engaging and interactive bundle of lessons, support your students in strategic practice of adding and subtracting numbers 10-100. Practice gradual release of responsibility with guided and independent practice of the concepts. Use the information from the “games” to drive your next instructional decisions. Your students will:

**Segment 1:**find patterns on a number grid and discuss how place value can help find 10 and 100 more or 10 or 100 less than a number without counting, explain their reasoning on how they find 10 or 100 more or 10 or 100 less than a number, and solve equations adding 10 or 100 and subtracting 10 or 100 using mental math**Segment 2:**play 3 different games: “Spin, Add, or Subtract,” “What’s My Number?,” and “Flip and Solve” to practice solving equations adding 10 or 100 and subtracting 10 or 100 using mental math

These lessons can be taught over the span of a half day or you can use the lessons independently, broken up over several days.