Mathematics
Mathematics, 14.10.2020 14:01, cupcake122016

Cecilia simplified an expression. Her work is shown below. (6 and one-half + 2 and three-fourths) minus 1.5 times (4.5 divided by 0.5)
Step 1 9 and one-fourth minus 1.5 times (4.5 divided by 0.5)
Step 2 7.75 times (4.5 divided by 0.5)
Step 3 7.75 times 9
Step 4 69.75

Where did Cecilia make her first mistake?
step 1
step 2
step 3
step 4

answer
Answers: 1

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Cecilia simplified an expression. Her work is shown below. (6 and one-half + 2 and three-fourths) m...

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