Anna is solving 27 × 12.

Mia asks Anna to wait after she writes a 5 in her work.
Mia asks why she wrote a 5.

Complete the sentences to explain Anna’s work.

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In the first step, Anna solved 7 × 2.
In the second step, Anna solved 20 × 2.

20 × 2 is equal to
which is equivalent to
tens.

Then, Anna added the 1 ten that was regrouped to get
tens.

1 answer

In the first step, Anna solved 7 × 2.

In the second step, Anna solved 20 × 2.

20 × 2 is equal to 40, which is equivalent to 4 tens.

Then, Anna added the 1 ten that was regrouped to get 5 tens.

So, Anna wrote a 5 to represent the 5 tens, which is 50 in the final calculation.