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Lucie works out 25 x 12.2 without a calculator.
Here is her working.
10 × 12.2 = 12.20
20 × 12.2 = 24.40
5 x 12.2 = 61
25 x 12.2 = 24.40 +61 = 85.40
Lucie's working is incorrect.
Identify and (only) correct the lines containing a mistake
to work out the correct answer.
122
244

Lucie works out 25 x 122 without a calculator Here is her working 10 122 1220 20 122 2440 5 x 122 61 25 x 122 2440 61 8540 Lucies working is incorrect Identify class=


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