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Some numbers seem too big to multiply easily. Organising the information in an array often helps. An array is a way of lining up objects in rows and columns so they are easier to count or multiply.
The rows run from left to right. This array has three rows.
![Picture of an array, with a row highlighted Picture of an array, with a row highlighted](png/4x3_blue_top.png)
The columns run from top to bottom. This array has four columns.
![Picture of an array, with a column highlighted Picture of an array, with a column highlighted](png/4x3_blue_side.png)
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