Squares and their positive roots
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A square array has 3 dots in each row and 3 rows. How many dots does it contain?
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Answer: 9 dots
- 3 rows × 3 dots per row = 9.
- This is the square number 3².
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Curriculum reference
Victorian Curriculum F–10 Version 2.0
Pi Leo practice scope
Connect equal-sided arrays and square-root problems.
Read the official VCAA curriculum description (VC2M7N01)
These quizzes practise concepts within this topic. Multiple-choice answers alone do not demonstrate drawing, conducting an investigation or using a digital tool.
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- Supported by the guided activity; selecting an MCQ does not demonstrate this action.
- VC2M7N01-C01The positive square root of a perfect square gives the nonnegative side length of a square with that area.
- VC2M7N01-C02The difference between consecutive square arrays is an odd number. The new layer contains one extra row and one extra column with their shared corner counted once.
- VC2M7N01-C03Representing and explaining the relationship between squares and square roots.
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Descriptor-derived subskills
- D01Recover the side from areaThe positive square root of a perfect square gives the nonnegative side length of a square with that area.
- D02Grow a square by one layerThe difference between consecutive square arrays is an odd number. The new layer contains one extra row and one extra column with their shared corner counted once.