Step 1: =40 + 20
Mathematics, 14.08.2020 07:01 kallie862
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
A: step 1
B: step 2
C: Dave did not make a mistake
Answers: 3
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Dave tried to evaluate 55 – 15 + 20 step-by-step.
55 - 15 + 20
Step 1: =40 + 20
Step 1: =40 + 20
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