Respuesta :
Marissa made of the mistake of computing 15.6 + 13.47 = 29.07
Instead she should have done 1.56 + 13.47 = 15.03 which is the proper answer
She lined up the digits incorrectly. The mistake she made was lining up the front numbers instead of the decimal points.
This is why the answer is choice B
Instead she should have done 1.56 + 13.47 = 15.03 which is the proper answer
She lined up the digits incorrectly. The mistake she made was lining up the front numbers instead of the decimal points.
This is why the answer is choice B