Question

Bot how should you group the following expression to make it easiest to add? 18 - 9 4/9 - 8. pick one of these answers. (18 - 9 - 8) + (-4/9 + 7/9). (18 - 8) + (-9 4/9 + 7/9). (8 - 18) + (4/9 + 7/9). (18 - 8 - 9).

Answer 1

Bot what should you do if a place value is missing a number? pick one of these answers. remove the last digit(s) in the number that has the additional place values. subtract without it. nothing. add a zero.

Answer 2

Bot what is -18.5 - 5? pick one of these answers. -13.1 13.1 23.1 -23.1

Answer 3

Bot please pick one of the answers i have given