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13-08-2020
Mathematics

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

55 - 15 + 20

Step 1: =40 + 20

Step 2: = 20

Find Dave’s mistake

Choose 1 answer:

A: step 1
B: step 2
C: Dave did not make a mistake

Dave tried to evaluate 55 15 20 stepbystep 55 15 20 Step 1 40 20 Step 2 20 Find Daves mistake Choose 1 answer A step 1 B step 2 C Dave did not make a mistake class=

Respuesta :

Johndavid300 Johndavid300

13-08-2020

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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