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Description

In this worksheet, students round the costs of groceries up and down to come up with an estimated total for a cart full of groceries.

The worksheet is part of a Year 5 unit designed to help students consolidate their rounding skills and incorporate them with estimation to estimate solutions to difficult questions or check the reasonableness of answers.
 

Lesson Structure
  • Individual Activity
Curriculum Codes

AC9M3N05 9

Estimate the quantity of objects in collections and make estimates when solving problems to determine the reasonableness of calculations

AC9M4N07 9

Choose and use estimation and rounding to check and explain the reasonableness of calculations including the results of financial transactions

AC9M5N08 9

Check and explain the reasonableness of solutions to problems including financial contexts using estimation strategies appropriate to the context

ACMNA099 8.4

Use estimation and rounding to check the reasonableness of answers to calculations

VCMNA182

Use estimation and rounding to check the reasonableness of answers to calculations

MA3-1WM old

Describes and represents mathematical situations in a variety of ways using mathematical terminology and some conventions

MA3-2WM old

Selects and applies appropriate problem- solving strategies, including the use of digital technologies, in undertaking investigations

MA3-3WM old

Gives a valid reason for supporting one possible solution over another

MA3-5NA old

Selects and applies appropriate strategies for addition and subtraction with counting numbers of any size

MA3-6NA old

Selects and applies appropriate strategies for multiplication and division, and applies the order of operations to calculations involving more than one operation

MA2-RN-01 new

Applies an understanding of place value and the role of zero to represent numbers to at least tens of thousands

MA2-RN-02 new

Represents and compares decimals up to 2 decimal places using place value

MA2-AR-01 new

Selects and uses mental and written strategies for addition and subtraction involving 2- and 3-digit numbers

MA2-AR-02 new

Completes number sentences involving addition and subtraction by finding missing values

MA2-MR-01 new

Represents and uses the structure of multiplicative relations to 10 × 10 to solve problems

MA2-MR-02 new

Completes number sentences involving multiplication and division by finding missing values

MA3-AR-01 new

Selects and applies appropriate strategies to solve addition and subtraction problems

MA3-MR-01 new

Selects and applies appropriate strategies to solve multiplication and division problems

MA3-MR-02 new

Constructs and completes number sentences involving multiplicative relations, applying the order of operations to calculations

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