Integrated Standards: 5.OA.A.1, 5.OA.A.2, 5.NBT.B.7

5.OA.A.1 Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.

5.OA.A.2 Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation “add 8 and 7, then multiply by 2” as 2 x (8 + 7). Recognize that 3 x (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.

5.NBT.B.7 Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

Math Practice Standards: MP.1, MP.2, MP.3, MP.4, MP.5, MP.6, MP.7, MP.8

Task Exemplar:

Denise and several of her friends went to the movies for her birthday. Here is the menu for the movie theater concessions:

Food / Cost
Hot dog / $1.75
Large popcorn / $6.49
Small popcorn / $3.27
Pickle / $1.09
Nachos / $4.99
Large soda / $3.86
Small soda / $1.43

1.  For her friends, Denise bought three hot dogs, two large popcorns, one pickle, four nachos, two large sodas, and two small sodas.

Part A:

Write an expression using parentheses, brackets, and/or braces to show how much money Denise spent at the concessions.

Part B:

Solve your expression from Part A to show how much money Denise spent. Model and explain your thinking.

2.  For the adults who went to the movie, Denise’s mom bought one large popcorn, three pickles, two nachos, two small popcorns, five large sodas, and one small soda. She paid for her order with a $100-bill.

Part A:

Write an expression using parentheses, brackets, and/or braces to show how much change Denise’s mom should receive.

Part B:

Solve your expression from Part A to show much change Denise’s mom should receive. Model and explain your thinking.