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Year 6 Maths Number Properties & Integers

Triangular numbers

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Questions
Question 1
188263

The dots are stacked into a triangle.

Triangular arrangement of dots A triangle of dots with 1 dot in the top row, 2 in the middle row and 3 in the bottom row.

How many dots are there altogether?

\(\text{Total}=\) 
6
 \(~\text{dots}\) 1 mark

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