A box has fewer than 50 cookies in. The cookies can be divided evenly between 2, 3, or
4 children. However, they cannot be divided evenly between 7 children because 6
more cookies would be needed. How many cookies are there in the box?
Answers
Answer:
Step-by-step explanation:
ASSUMED KNOWLEDGE
Much of the building of understanding of early mathematics occurs concurrently, so a child can be developing the basic ideas related to multiplication and division whilst also investigating the place-value system. However, there are some useful foundations necessary for multiplication and division of whole numbers:
Some experience with forwards and backwards skip-counting.
Some experience doubling and halving small numbers.
(see F-4 Module Counting and Place Value and F-4 Module Addition and Subtraction)
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MOTIVATION
One way of thinking of multiplication is as repeated addition. Multiplicative situations arise when finding a total of a number of collections or measurements of equal size. Arrays are a good way to illustrate this. Some division problems arise when we try to break up a quantity into groups of equal size and when we try to undo multiplications.
Multiplication answers questions such as: