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Maths
Additive structures: addition
Starter quiz
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Give to class
Use the part-part-whole model to complete the sentence.
______
is the sum.
'5' ✓
Look at the equation. Which of these equations are represented by the part-part-whole model.
8 = 6 + 2 ✓
8 + 2 = 6
2 + 6 = 8 ✓
Jacob partitions a set of objects into two parts. Which picture is represented by this equation? 6 = 4 + 2
Which number represents the sum of the parts in this picture?
3
5 ✓
2
Match each equation to the one that could represent the same picture.
10 = 9 + 1
⇔
9 + 1 = 10 ✓
10 = 3 + 7
⇔
3 + 7 = 10 ✓
1 + 8 = 9
⇔
9 = 1 + 8 ✓
Sofia writes four equations to match a picture. 6 = 4 + 2 4 + 2 = 6 2 + 4 = 6 6 = 2 + 4 Which picture could they match?
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