Strategic Solving Part III

The Ministry is migrating nzmaths content to Tāhurangi.           
Relevant and up-to-date teaching resources are being moved to Tāhūrangi (tahurangi.education.govt.nz). 
When all identified resources have been successfully moved, this website will close. We expect this to be in June 2024. 
e-ako maths, e-ako Pāngarau, and e-ako PLD 360 will continue to be available. 

For more information visit https://tahurangi.education.govt.nz/updates-to-nzmaths

Purpose

These exercises and activities are for students to use independently of the teacher to practise number properties.

Achievement Objectives
NA4-2: Understand addition and subtraction of fractions, decimals, and integers.
Specific Learning Outcomes
solve linear equations with integer solutions
 
use a range of add/sub strategies to solve linear equations.
Description of Mathematics

Addition and Subtractions,  AM (Stage 7)

Required Resource Materials
Practice exercises with answers (PDF or Word)
Activity

Prior knowledge

Use a range of number strategies for solving addition and subtraction problems with whole numbers.

Background

In this activity students solve simple algebraic equations that involve integers. It combines their ability to add and subtract integers, use a range of addition and subtraction strategies, and work with simple equations that involve an x. Students are not required to know any methods of solving equations to be able to solve these problems. The requirement is that they immediately write the equation in a form that tells them the calculation they need to do (for learning this skill with whole numbers see Task: Strategic Solving Part I). Students will be required to select an appropriate Add / Sub strategy in order to calculate x.

Comments on the Exercises

Exercise 1
Asks students to solve addition equations with an unknown x value. The equations involve addition and subtraction of integers, e.g. -45 + x = 76, 72 - x = -15.
 
Exercise 2
Asks students to write a word problem. It could be used as homework.
Add to plan

Log in or register to create plans from your planning space that include this resource.


Level Four