# Mighty Mountain - Find the Mistake

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PDF | 9 pages|Grades: 4 - 5

A pirate-y adventure to find the mistake with all operations.

Each of the problems has been solved, but the solutions contain mistakes! Students find the mistakes and then explain and correct them.

Errors include:

• making an arithmetic error
• choosing the wrong operation
• using one operation when two is needed to solve the problem
• using the extra information in the solution.

8 problems include whole numbers and all operations.

Use during guided maths, during tutoring or intervention, with small groups or in centres.

This activity includes clear and concise teacher directions, an answer key and conversation starters that give students what they need to have meaningful academic discussions.”

#### Australian Curriculum alignment

• ACMNA073

Apply place value to partition, rearrange and regroup numbers to at least tens of thousands to assist calculations and solve problems

• ACMNA100

Solve problems involving multiplication of large numbers by one- or two-digit numbers using efficient mental, written strategies and appropriate digital technologies

• ACMNA101

Solve problems involving division by a one digit number, including those that result in a remainder

• ACMNA291

Use efficient mental and written strategies and apply appropriate digital technologies to solve problems

• ACMNA076

Develop efficient mental and written strategies and use appropriate digital technologies for multiplication and for division where there is no remainder

TeachTransform creates fun math activities that get students involved in real math. We bring decades of education experience to the task, and we believe that students learn best when teachers and students are having fun.

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