Station 8
Multiplication

Let’s keep playing with the $1\leftarrow 10$ machine. And let’s do a multiplication problem … right now!

Let’s go!

Solve this multiplication as quickly as possible! Can you do it in less than $10$ seconds?

I3S8 - image 22

Perform some explosions on the machine to see that our answer to $26417 \times 3$ matches the answer $79251$ , one that society understands:

Now try to calculate $26417 \times 4$ .
(We are going to run out of boxes. Can you see what the answer is going to be if we did draw a sixth box?)

Make the explosions required to stabilize the product of $6417 \times 10$ .

Have a look at the station on “multiplying by $10$ ” to see why $26417\times 10$ is $264170$ . (But maybe you’ve figured out why already?)

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