40 Days to 5th Grade STAAR (Days 6 - 10)

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by performing the operations indicated in the expression.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents a number that can change or vary.

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 4 x 3 means adding 4 three times (4 + 4 + 4).

Front

What is division?

Back

Division is a mathematical operation that splits a number into equal parts. For example, 12 ÷ 3 means splitting 12 into 3 equal parts, which equals 4.

Front

How do you calculate the total cost of multiple items?

Back

To calculate the total cost, multiply the price of one item by the number of items purchased. For example, if one shirt costs $12.80 and you buy 6 shirts, the total cost is 12.80 x 6.

Front

What is a recipe in cooking?

Back

A recipe is a set of instructions that describes how to prepare a particular dish, including the ingredients and their quantities.

Front

How do you find the total amount needed for a recipe that makes multiple batches?

Back

To find the total amount needed for multiple batches, multiply the amount of each ingredient by the number of batches. For example, if 1.25 cups of butter is needed for one batch, for 6 batches you need 1.25 x 6.

Front

What is the significance of parentheses in mathematical expressions?

Back

Parentheses indicate which operations should be performed first in an expression, following the order of operations.

Front

What is the formula for calculating the cost of items?

Back

The formula for calculating the cost of items is: Total Cost = Price per Item x Number of Items.