A) Jack works out 25 x 14. 2 without a calculator.

Here is his working. 10 x 14. 2 = 14. 20

20 x 14. 2 = 28. 40

5 x 14. 2 = 71

25 x 14. 2 = 28. 40 + 71 = 99. 40

Jack's working is incorrect.

Identify and (only) correct the lines containing a mistake to work out

the correct answer.

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