In this worksheet, we will practice using mental strategies including applying the commutative and associative properties to add three or more decimal numbers with up to two decimal places.
Q4:
Matthew saved 915 piastres in the first month, 940 piastres in the second month, and 985 piastres in the third month. How much did he save in total?
Q5:
Noah saved 815 piastres in the first month, 785 piastres in the second month, and 825 piastres in the third month. How much did he save in total?