12. CLUES 1. Helena wants to __ the cookies equally among her friends. 2. Letters or symbols that stand for unknown numbers are __. 3. A set of related multiplication and division number sentences is called a __. 4. Multiplication and division are opposite, or __ operations. 5. The answer to a division problem is the __. 6. 12 ÷ 6 is an example of an __. 7. The __ is the number that is being divided in a division problem. 8. The number that divides the dividend is the __. 9. Multiply two factors to find the __. 10. Tiles arranged in rows and columns are an __. 11. When groups have the same number of items, you can __ to find out how many there are in all. 12. Numbers that you multiply are __.