STAAR Academy Day 2: 5.4EF PEMDAS

Mathematical Equivalence

ON

Mathematical Equivalence

ON

• The parentheses indicate that 8 + 2 should be solved first.

• The parentheses indicate that 8 + 2 should be solved last.

Answer explanation

The total number of cups of milk the chef used is 11.5 cups. This can be calculated by adding the 1/4 cup of milk used for the first recipe to the 2 cups of milk used for each of the 5 additional recipes (2 x 5 = 10 cups). The total is 1/4 + 10 = 11.5 cups.

Mathematical Equivalence

ON

• The outer brackets indicate that 48 x 10 should be solved first.

• The inner parentheses indicate the difference of 7 and 3 should be solved first.

• The outer brackets indicate that 10 - 5 should be solved first.

• The inner parentheses indicate that 5 x 7 should be solved first.

Mathematical Equivalence

ON