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Question 1

Let’s compute $251 + 124$.

Such a problem is usually set up this way.

This addition problem is easy to compute:
$2+1$ is $3$;
$5+2$ is $7$;
and $1+4$ is $5$.

The answer $375$ appears.

You can try it too on the $1\leftarrow 10$ machine.

Question 2

Now try this problem with machine.

Question 3

Go ahead, do some explosions in the machine to get an answer to $358+287$ you think society would accept.

Question 4

Write down, or say out loud, the straightforward answer to the sum. Then run the machine and adjust that answer to one that won’t sound weird to society.

Question 8

Let's go to the next station!

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