How should you group the following expression to make it easiest to add? 18 − 949 + 79 − 8(1 point)
Responses
(18 − 8 − 9)
(18 − 8) + (−9 4/9 + 7/9)
(8 − 18) + (4/9 + 7/9)
(18 − 9 − 8) + (−4/9 + 7/9)
Responses
(18 − 8 − 9)
(18 − 8) + (−9 4/9 + 7/9)
(8 − 18) + (4/9 + 7/9)
(18 − 9 − 8) + (−4/9 + 7/9)