3.OA.8. Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rou

 

View interactive math games for all Grade 3 Common Core Standards

 
Balancing Sums Balancing Sums

An excellent tool for reinforcing an understanding of the role of the equals sign. Choose one objective, or many. You can choose all the objectives for a single year group (or multiple year groups). You can also choose to balance between different types of calculations (eg addition and multiplication). 

For more addition and subtraction resources click here.

Reading Scales - Capacity Word Problems Reading Scales - Capacity Word Problems

Read the scales on the measuring cylinder and answer word problems involving addition and subtraction. Play against the clock for points.

For more measuring resources click here.

For more resources involving word problems click here.

Using a Calculator - Finding Change Using a Calculator - Finding Change

Answer a variety of 2 step word problems using a calculator. Whatever is input into the calculator is then recorded and displayed, so children can see all the steps that have been taken. This makes it a great tool for demonstrating calculator skills on a whiteboard. It can also be really useful for children to practice independently, as they can trace and correct any mistakes they make.

For more calculator resources click here.

Solve 2 Step Money Problems Solve 2 Step Money Problems

Read and interpret a word problem. Calulate the cost of 2 items and then find change from a given amount.

** February 2013 - I have added a new game in which you solve 2 step money problems using a calculator **

For more money resources click here.

For more resources involving word problems click here.

ITP Function Machine ITP Function Machine

View full screen in your browser.  One or two-step function machine. Choose an input and explore how it is transformed by one or two number functions.

This resource is freely available to download from the archived Primary Framework site.

Placing Calculations on a Number Line Placing Calculations on a Number Line

Place the answer to calculations on a number line. An enormous array of choice. Addition, subtraction, multiplication and division. Ranging from adding numbers to 10 to multiplying 4 digit numbers. Great for combining teaching calculations and approximations with developing an understanding of place value.

For more resources involving partitioning and place value click here.

For more addition and subtraction resources click here.

For more multiplication and division resources click here.

Balance scales -  add, move or remove a weight Balance scales - add, move or remove a weight

Balance the scales by adding, moving or removing a weight. A great mental starter to develop addition and subtraction skills.

For more addition and subtraction resources click here.

Balancing Scales g and kg Balancing Scales g and kg

Add weights to either pan until they are balanced. Can be used to teach addition, subtraction, partitioning, and mass, as well as developing an understanding of the equals sign.


Choose from grams, whole kilograms or kilograms with either 1 or 2 decimal places.

For more addition and subtraction resources click here.

For more partitioning resources click here.