morganavakin17 morganavakin17 13-10-2021 Mathematics contestada Skill in adding and subtracting decimals is useful for calculating ______ . the total children in a classroom. the total children in a classroom. the number of hours in two days. the number of hours in two days. the amount saved in buying a pair of $32.95 blue jeans on sale for $26.50. the amount saved in buying a pair of $32.95 blue jeans on sale for $26.50.