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Bakery Morning: Factor Pairs, Multiples, Prime and Composite

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Bakery Morning: Factor Pairs, Multiples, Prime and Composite

Arrange treats on trays, pack them in boxes, and sort prime and composite numbers.

Tray layouts and factor pairs

The bakers put treats on trays in equal rows with none left over. Use factor pairs to plan each tray.

1.
Baker Ana has 28 cookies. Fill in each tray layout, then count the factor pairs of 28.

1 row of cookies
2 rows of cookies
4 rows of cookies
Number of factor pairs of 28:

2.
Rosa has 30 dinner rolls. She puts them on a tray in equal rows with none left over. Circle every number of rows she could make.

3.
Theo has 48 muffins. He says the only factor pairs of 48 are 6 × 8 and 4 × 12. Which factor pairs did Theo miss?
Question 3 options
4.
Baker Lin has 64 cupcakes. She wants a square tray, with the same number of rows as cupcakes in each row.

rows with cupcakes in each row

5.
Match each number of treats to how many factor pairs it has. Count 2 × 6 and 6 × 2 as the same pair, and count a pair like 5 × 5 once.

Boxes and multiples

The bakery packs treats in full boxes. Use multiples to decide which amounts work.

6.
Muffins come in packs of 7. Write the next three multiples of 7.

7, 14, , ,

7.
Bagels come in bags of 4. Circle every number of bagels that fills bags of 4 with none left over.

8.
Donuts are packed in boxes of 8. Which number of donuts fills the boxes with none left over?
Question 8 options
9.
The baker fills 7 boxes with 9 scones in each box, so 7 × 9 = 63. Use the word bank to finish the sentence.

63 is a of 7, and 7 is a of 63.

Prime or composite?

A prime number has exactly two factors: 1 and itself. A composite number has more than two factors.

10.
Sort the numbers on the baker's order tickets.
11.
Which number of pies is composite?
Question 11 options
12.
Jada wants to put 37 brownies on a tray in equal rows, with at least 2 rows and at least 2 brownies in each row. Can she do it? Explain using the word prime or composite.