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3 years ago

Mikayla evaluated the expression 0.86 × 23.4 using the steps shown below.

Mathematics

2 answers:

Serga [27]3 years ago

8 0

Answer:

Mikayla moved the decimal incorrectly.

Step-by-step explanation:

mikayla evaluated the expression 0.86 × 23.4 using the steps shown below.

0.86

× 23.4

344

2580

+ 17200

= 201.24

LEts do the multiplication without decimals

8 6

x 2 3 4

--------------------

3 4 4

2 5 8 0

1 7 2 0 0

------------------------------

2 0 1 2 4

0.86 has two numbers after the decimal point and 23.4 has one number after the decimal point

So we move 3 places to the left ( 20.124)

Mikayla moved the decimal incorrectly.

omeli [17]3 years ago

6 0

C. Mikayla moved the decimal incorrectly.

The decimal should have been moved 3 spaces, to get an answer of 20.124

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