Unit 3 Contents

7. A rectangle is made of 9 tiles and has 3 tiles in each row.
1. How many different number sentences can you write for this rectangle?
2. Think about the rectangles for the other square numbers. How many facts are in their fact families?
1. Write all the number sentences in the fact family for 5 2.
2. Write all the number sentences in the fact family for 5².

Using Fact Families

Jackson's Hardware Store decided to donate 30 basketballs to the schools in the neighborhood.

John and his father went to pick up the basketballs for Bessie Coleman School. When they arrived at the store, there were people from four other schools waiting to pick up basketballs. John helped divide the thirty basketballs into five groups.

Each of the 5 schools got 6 new basketballs.

The division sentence for this is 30 divided by 5 equals 6. Another way to write this problem is . The answer to a division problem is called the quotient. In this problem the quotient is six. Thirty, or the number to be divided, is the dividend. The divisor is five.

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