Grade 5 - Operations With Whole Numbers Unit
The Operations with Whole Numbers Unit involves using patterns and place value to apply strategies to perform all four operations with whole numbers. Questions to answer may include:
- How are the properties of place value (additive, multiplicative, base-ten & positional) useful in applying efficient procedures for adding, subtracting, multiplying and dividing whole numbers?
- How can mental math, rounding, and/or the use of compatible numbers help to determine whether a solution is reasonable?
- How does an expression differ from an equation?
Math Concepts and Skills:
The student develops and uses strategies for whole number computation in order to solve problems.
The student is expected to:
- estimate to determine solutions to both mathematical and real-world problems involving the operations of addition, subtraction, multiplication, or division.
- multiply a three-digit number by a two-digit number.
- solve problems involving quotients of up to a four-digit dividend by a two-digit divisor using a variety of strategies.
The student uses expressions and equations.
The student is expected to:
- represent and solve multi-step problems involving the four operations with whole numbers using equations with a letter standing for the unknown quantity.
Summative Assessment Task
Students determine the number of cartons of Popsicles the Franklin School needs for its 950 students.
Instructional Tasks/Formative Assessments
Given the amount of Paulo's monthly salary three years ago and Paulo's monthly salary in 12 years, students determine what Paulo's monthly salary will be this year, if his monthly salary increases by the same amount every year.
Students determine how many bags of buttons are needed for a class craft project.
Students determine if an chicken farmer can ship 8,064 eggs in a single shipment, if the shipper can deliver no more than 30 shipping boxes of eggs at a time.
Students determine how many buses are need to transport students to the movies.