6. Multiplication and division

Lesson

We can use arrays to help us in this lesson. Let's try this problem to review.

Complete the statement with the missing numbers: There are ⬚ groups of ⬚ counters.

Worked Solution

Idea summary

Arrays can be used to group objects and show multiplication and division.

This video introduces fact families for multiplication and division facts.

Complete the fact family with the missing numbers.

\begin{aligned} 5\times⬚&=5 \\ 1\times⬚&=5 \\ 5\div⬚&=5 \\ ⬚\div5 & =1 \end{aligned}

Worked Solution

Idea summary

For a multiplication problem such as 4\times3=12, we can write 3 other facts to form the fact family: \begin{aligned} 3 \times 4&=12 \\ 12 \div 3&=4 \\ 12 \div 4 & =3 \end{aligned}

uses mental and informal written strategies for multiplication and division