Combine parts using the addition symbol | Maths | Quizalize & Oak National Academy

Starter quiz

Which picture shows Sofia’s whole group of cakes.
Look at the picture. How many pieces of fruit are in the whole group?
- 8 ✓
- 6
- 2
Which part-part-whole model correctly represents this stem sentence? 5 is the whole, 1 is a part and 4 is a part.
Which of the following is correct?
- 8 is the whole. 2 is a part and 6 is a part. ✓
- 6 is the whole. 2 is a part and 8 is a part.
- 2 is the whole. 6 is a part and 8 is a part.
Which one of these numbers cannot be a part of the whole in the picture shown?
- 3
- 4
- 5 ✓
Complete the stem sentence 7 is the whole: 2 is a part and ______ is part.
- '5' ✓

There are 3 large cars and 4 small cars. We can represent this as...
- 3 + 7
- 3 + 4 ✓
- 7 + 4
Jacob has some chocolate cakes and some cherry cakes (plain with a cherry on top). He represents them like this, 4 + 2. What does the 4 represent?
- the chocolate cakes ✓
- the cherry cakes
- the whole group
Sofia represents this picture like this, 3 + 4. Match each numeral or symbol to the correct description of what it represents.
- 3
  
  ⇔
  
  the cups with juice ✓
- +
  
  ⇔
  
  the parts combine to make the whole ✓
- 4
  
  ⇔
  
  the empty cups ✓
Which pictures represents 7 + 2
Use numerals and the plus sign to represent the fingers held up in this picture.
- '3 + 5' ✓
Which of the following does not represent the picture?
- 5 + 2
- 2 + 5
- 3 + 4
- 3 + 7 ✓

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When a whole is partitioned into parts, it can be represented using the addition symbol.
The addition symbol shows that the parts combine to make the whole.
We can describe the parts to help us understand how to represent them.
A whole group can be partitioned in different ways.

Children may have difficulty understanding partitioning of the whole group where one part is zero.

Include contexts with zero, so children can discuss and clarify their thinking.