Year 1

Year 1

# Exploring problems involving addition and subtraction

## Switch to our new maths teaching resources

Slide decks, worksheets, quizzes and lesson planning guidance designed for your classroom.

## Lesson details

### Key learning points

1. In this lesson, we will problem solve to complete missing number triangles! We will practice adding and subtracting to find the answers.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

Share with pupils

## Worksheet

Share with pupils

## Starter quiz

Share with pupils

### 3 Questions

Q1.
This part whole model can be expressed as 7 - 3 = 4. Choose the other subtraction equation that can be written from this part whole model.
7 - 0 = 7
7 - 1 = 6
Correct answer: 7 - 4 = 3
Q2.
There are five elves standing up, and two elves sitting down. Altogether, there are seven elves. This can be written as an equation: 5 + 2 = 7. How else can this equation be written?
1 + 6 = 7
Correct answer: 2 + 5 = 7
7 = 3 + 4
Q3.
This part whole model can be expressed as 1 + 6 = 7. Choose the other addition equation that can be written from this part whole model.
2 + 5 = 7
3 + 4 = 7
Correct answer: 6 + 1 = 7