Math- problem Solving

For the last two days we have been doing how to solve problems in different ways.

Here is one of the problems I solved.

  1. 66+68+26=160 (By algorithm)
  2. 66-70 , 68-70, 26-30 , 70+70=140+30=170, 170-10=160.

What other ways can we solve the questions?

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