# Addition and Subtraction Quiz

*Time: 20 min. 8 questions.*

## Instructions

Read each question carefully. Use counters, a number line, or drawings to help you. Write your answers in the space given. Try your best on every question.

## Questions

1. What is 7 + 3?
A) 9
B) 10
C) 11
D) 12
([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852))

2. Show two different ways to make 15 using addition. You can use two numbers or more than two numbers. ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29848))

3. True or false: If you add 3 + 4 + 6, you get the same sum no matter what order you add the numbers in. ([Knowledge](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29846))

4. Add these numbers: 48 + 25 = ___ ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852))

5. Which strategy could help you solve 38 + 40?
A) Making a multiple of ten
B) Guessing
C) Skipping the ones place
D) Counting backwards from 100
([Knowledge](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29850))

6. Fill in the missing number: 60 − ___ = 25 ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852))

7. True or false: You can check that 45 − 20 = 25 is correct by adding 25 + 20 to see if you get 45. ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852))

8. Ben has a ribbon that is 100 cm long. He cuts off 35 cm to use for a bow. How many centimetres of ribbon does he have left? ___ cm ([Understanding](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29851))

## Curriculum coverage

| Question | Outcome alias |
|---|---|
| 1 | [Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852) |
| 2 | [Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29848) |
| 3 | [Knowledge](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29846) |
| 4 | [Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852) |
| 5 | [Knowledge](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29850) |
| 6 | [Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852) |
| 7 | [Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852) |
| 8 | [Understanding](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29851) |

## Answer key

1. C) 11. Adding the addition fact 7 + 3 gives a sum of 10... wait, correction: 7 + 3 = 10, so the correct answer is B) 10. Students recall addition facts with addends to 10 ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852)).

2. Many answers are possible, such as 10 + 5, or 7 + 8, or 5 + 5 + 5. A sum can be composed in more than one way ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29848)).

3. True. Changing the order of the addends does not change the sum, which is the associative property ([Knowledge](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29846)).

4. 73. Adding 48 and 25 gives a sum of 73, found using a two-digit addition strategy ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852)).

5. A) Making a multiple of ten. Breaking 38 into 30 + 8 and adding to 40 makes tens easier to add ([Knowledge](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29850)).

6. 35. Since 60 − 35 = 25, the missing number is 35, found by working out the missing quantity in the difference ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852)).

7. True. Addition can be used as the inverse operation to check a subtraction answer ([Skills](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29852)).

8. 65 cm. Subtracting 35 from 100 leaves 65 cm of ribbon, showing subtraction of a measurable length ([Understanding](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29851)).

---
*AILI quiz · language en · model claude-sonnet-5 · generated 2026-09-17 · id 68ddb091-37f8-4176-8ba7-92742fa60aa0*

### Sources

- node:n1: 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: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? › Students investigate addition and subtraction within 100. (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/29846)
- 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/29848)
- 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/29847)
- 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/29850)
- 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/29852)
- 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/29851)
- 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/29852)
- 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/29850)
- 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/29848)
- 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/29847)
- 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/29846)
- 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)