Question

Callie evaluated the expression 0.42 times 4.73 using the steps shown below.

0.42 times 4.73 = 1.26. 1.26 + 29.40 + 168.00 = 198.66

Which best explains Callie’s error?

a.)Callie incorrectly placed the decimal.
b.)Callie multiplied incorrectly.
c.)Callie added incorrectly.
d.)Callie incorrectly used placeholder zeros. I AM GIVING 55 POINT'S

Answer 1

Given : Callie evaluated the expression 0.42 times 4.73 using the steps shown below. 0.42 times 4.73 =   1.26 + 29.40 + 168.00 = 198.66

To Find :  Which best explains Callie’s error?

Callie incorrectly placed the decimal.

Callie multiplied incorrectly.

Callie added incorrectly.

Callie incorrectly used placeholder zeros.

Solution:

Correct calculation :

0.42 times 4.73

= 0.42 * 0.03  + 0.42* 0.7  + 0.42* 4

= 0.0126  + 0.294  +  1.68

= 1.9866

Callie evaluated

1.26 + 29.40 + 168.00 instead of

0.0126  + 0.294  +  1.68

Callie incorrectly placed the decimal

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