From Repeated Addition to Multiplication

Core Concepts

Discover how multiplication is a fast shortcut for repeated addition. Learn to read, write, and understand multiplication sentences using the '×' symbol.

From Repeated Addition to Multiplication

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What is a faster way to write a repeated addition sentence like $4 + 4 + 4$?

As a multiplication sentence: $3 \times 4$.

What does the multiplication sentence $3 \times 4$ mean?

It means '$3$ groups of $4$' or '$3$ times $4$'.

How do you write '$4$ groups of $5$' as a multiplication sentence?

$$4 \times 5$$

What symbol do we use for multiplication to mean 'groups of'?

The times sign: $\times$

Read this sentence out loud: $2 \times 6 = 12$.

"Two times six equals twelve" or "Two groups of six make twelve."

In the sentence $3 \times 5 = 15$, what does the number $3$ tell you?

The number of groups.

In the sentence $3 \times 5 = 15$, what does the number $5$ tell you?

The number of items in each group.

In the sentence $3 \times 5 = 15$, what does the number $15$ tell you?

The total number of items.

Write the repeated addition sentence $2 + 2 + 2 + 2$ as a multiplication sentence.

$$4 \times 2$$

Write the multiplication sentence $3 \times 7$ as a repeated addition sentence.

$$7 + 7 + 7$$

$$5 \times 2 = ?$$

$$10$$ (This is the same as $2+2+2+2+2$)

There are $6$ pairs of socks. A pair means $2$. How can you write this as a multiplication sentence?

$$6 \times 2$$

Change this repeated addition to multiplication: $8 + 8 + 8$.

$$3 \times 8$$

Change this multiplication to repeated addition: $5 \times 4$.

$$4 + 4 + 4 + 4 + 4$$

If you see $4 \times 6$, how many groups are there?

There are $4$ groups.

If you see $4 \times 6$, how many are in each group?

There are $6$ in each group.

From Repeated Addition to Multiplication

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