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Use the array to find the missing number. 2 rows of 5 columns = ⬜ squares.
Use the array to find the missing number: two rows of five columns equals how many squares.
In other words, how many squares are there in this array? We can see that our array has two rows of five. A row is the same as a group.So two rows, think two groups, two groups of five.
Two groups of five is the same as five plus five or five multiplied by two. And five plus five equals 10. So five multiplied by two must also equal 10. Two rows of five columns equals 10 squares.
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