kennedi8526 kennedi8526
  • 16-01-2023
  • Mathematics
contestada

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.
[3]

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