Dave tried to evaluate 55 – 15 + 20 step-by-step.

Mathematics

1 answer:

Softa [21]3 years ago

3 0

Answer:

Step 2

Step-by-step explanation:

In step 2 the expression was 40+20 which would have been 60 but he might have thought addition sign was subtraction so he did 40-20 which is 20 so he is wrong made mistake in step 2

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