how should you group the following expression to make it easiest to add? 18 − 949 + 79 − 8 (1 point)

Question

Responses

(18 − 8) + (−949 + 79)
Left Parenthesis 18 minus 8 Right Parenthesis plus Left Parenthesis negative 9 Start Fraction 4 over 9 End Fraction plus Start Fraction 7 over 9 End Fraction Right Parenthesis

(8 − 18) + (49 + 79)
Left Parenthesis 8 minus 18 Right Parenthesis plus Left Parenthesis Start Fraction 4 over 9 End Fraction plus Start Fraction 7 over 9 End Fraction Right Parenthesis

(18 − 9 − 8) + (−49 + 79)
Left Parenthesis 18 minus 9 minus 8 Right Parenthesis plus Left Parenthesis negative Start Fraction 4 over 9 End Fraction plus Start Fraction 7 over 9 Right Parenthesis

(18 − 8 − 9)

Answer 1

To make the expression \(18 - 949 + 79 - 8\) easiest to add, you should group terms that can simplify the calculations.

We can first look to combine the positive and negative terms effectively:

1. Combine \(18\) and \(-8\): \[ (18 - 8) \] results in \(10\).

2. Combine \(-949\) and \(79\): \[ (-949 + 79) \] results in \(-870\).

So, the best grouping for ease of addition would be: \[ (18 - 8) + (-949 + 79) \]

Therefore, the answer is: (18 − 8) + (−949 + 79)