Mon Prof Augmenté
Rows and columns in a muffin tin
Age 8 · Maths
When things sit in equal rows, you can multiply instead of counting them one by one. Count across by rows or down by columns, and the total stays the same.
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Age 8: open this week
Browse Age 8
In the picture
- A row: balls lined up from left to right
- A column: balls lined up from top to bottom
- One ball: rows × columns gives the total
Examples
- An egg box with 2 rows of 6 eggs holds 2 × 6 = 12 eggs, and 6 × 2 is also 12.
- A window with 3 rows of 4 panes has 3 × 4 = 12 panes.
Key takeaways
- Number of rows × number in each row = total.
- Swapping the numbers keeps the answer: 7 × 6 = 6 × 7 = 42.
Quiz: Rows and columns in a muffin tin (Age 8)
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A tray has 4 rows of cookies with 5 cookies in each row. How many cookies are there in all?
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You know that 8 × 3 = 24. What is 3 × 8?
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Things sit in equal rows. You count them across by rows, and your friend counts them down by columns. What happens?
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