# Addition and Subtraction Match-Up

Grade 2 students learn to add and subtract. They use numbers up to 100 ([Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29844)). Students investigate addition and subtraction within 100. Students investigate addition and subtraction within 100. Addend means a number you add to another number. Sum means the answer you get when you add. Compose means to put numbers together. Doubles means two numbers that are the same. Inverse means the opposite operation, or action. Minuend is the number you start with. Students investigate addition and subtraction within 100. Strategy means a plan to solve a problem. Learning these words helps us talk about making a sum in many ways ([Understanding](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29847)). It helps us check our answers with inverse operations ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852)). Good strategies like doubles or making tens make adding and subtracting easier ([Knowledge](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29850)).

## How to play

Look at the word on the left side. Find its meaning on the right side. Draw a line to join the word to its meaning. Each word matches only one meaning. Check your work with a partner when you finish.

## Match the pairs

| Column A | | Column B |
|:---|:---:|:---|
| **A.** addend | ____ | **1.** Making 10 by putting 6 and 4 together |
| **B.** sum | ____ | **2.** 3 in the problem 3 + 5 = 8 |
| **C.** compose | ____ | **3.** If 3 + 5 = 8, then 8 − 5 = 3 |
| **D.** doubles | ____ | **4.** Counting on your fingers or using a number line |
| **E.** inverse | ____ | **5.** 4 + 4 = 8 |
| **F.** minuend | ____ | **6.** 8 in the problem 3 + 5 = 8 |
| **G.** multiple | ____ | **7.** 50 is a multiple of 10 |
| **H.** strategy | ____ | **8.** 10 in the problem 10 − 3 = 7 |

## Answer key

- **A** matches **2** (addend: 3 in the problem 3 + 5 = 8)
- **B** matches **6** (sum: 8 in the problem 3 + 5 = 8)
- **C** matches **1** (compose: Making 10 by putting 6 and 4 together)
- **D** matches **5** (doubles: 4 + 4 = 8)
- **E** matches **3** (inverse: If 3 + 5 = 8, then 8 − 5 = 3)
- **F** matches **8** (minuend: 10 in the problem 10 − 3 = 7)
- **G** matches **7** (multiple: 50 is a multiple of 10)
- **H** matches **4** (strategy: Counting on your fingers or using a number line)

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*AILI game · language en · model claude-sonnet-5 · generated 2026-09-17 · id 7c0fdcab-319a-4c67-8556-148ac8d4b31c*

### Sources

- node:n1: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29843)
- node:n2: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29844)
- node:n3: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29846)
- node:n4: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29848)
- node:n5: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29847)
- node:n6: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29850)
- node:n7: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852)
- node:n8: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29851)
- node:n9: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852)
- node:n10: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29850)
- node:n11: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29848)
- node:n12: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29844)
- node:n13: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29847)
- node:n14: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29851)
- node:n15: Mathematics › Mathematics (K–6) › Grade 2 › Number: Quantity is measured with numbers that enable counting, labelling, comparing, and operating. › How can addition and subtraction be interpreted? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29846)
- resource:r1: Resources › type#assessment, type#lessonplan › MAT2 (https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/dv9USUsY70qm-0TvaUZueA)