Link to MORE grade six math games compiled in Saskatchewan that match our curriculum! I will add these to the list below as soon as I get a chance. Thanks Andrea for finding these for us. CVdR
Strand: Number
General Outcome: 
Web Links  Overviews of Web Links 
A1 Demonstrate an understanding of place value for numbers:

Beat the Clock

Identify the decimal 
A3 Demonstrate an understanding of factors and multiples (concretely, pictorially and symbolically) by:

Calculator Chaos

Problem solving to achieve a target number 
Multiplication Game

Two Player Tic Tac Toe Strategy Game  need to know multiplication facts  
A4 Relate improper fractions to mixed numbers (using models).  Mixed Fractions to Improper

Convert mixed numbers to improper fractions game 
Improper Fractions to Mixed

Convert improper fractions to mixed numbers game  
Fishy Fractions

Math mixed numbers to improper fractions  
A5 Demonstrate an understanding of ratio, concretely, pictorially & symbolically.  Ratios

Interactive tutorial explaining ratios 
A6 Demonstrate an understanding of percent (limited to whole numbers), concretely, pictorially & symbolically.  Interactive Bar Chart

Bar chart that can be adjusted to demonstrate percentages 
A7 Demonstrate an understanding of integers, concretely, pictorially & symbolically.  Bug Squash

Squash bugs moving swatters up and down number line. 
A9 Explain and apply the order of operations, excluding exponents, with and without technology (limited to whole numbers).  Order of Operations

Like Connect Four with order of operation questions. 
Quick Calculate

Using order of operations, quickly determine the answer  
Arithmetic Game

Fill in the blanks to make the equation true 
Strand: Statistics & Probability (Data Analysis)
General Outcome: 
Web Links  Overviews of Web Links 
D1 Create, label and interpret line graphs to draw conclusions.  Double Bar Graph Generator

Input data and a multiple info bar graph will be created. 
Strand:Statistics & Probability (Chance & Uncertainty)
General Outcome: 
Web Links  Overviews of Web Links 
D4 Demonstrate an understanding of probability (with and without technology) by:

Interactive Probability

Dice and Spinner Outcome Generator 
Dice Game

Game of Chance  Outcome generator 
Strand: Patterns & Relations (Variables & Equations)
General Outcome: 
Web Links  Overviews of Web Links 
B3 Represent generalizations arising from number relationships using equations with letter variables.  Weigh the Wangdoodles

Solving equations with letter variables 
Algebraic Reasoning

Solving equations with unknown variables  
B4 Demonstrate and explain the meaning of preservation of equality concretely, pictorially and symbolically.  Weigh the Wangdoodles

Solving equations with letter variables 
Algebraic Reasoning

Solving equations with unknown variables 
Strand: Shape & Space (Measurements)
General Outcome: 
Web Links  Overviews of Web Links 
C1 Demonstrate an understanding of angles by:

Alien Angles

Identify angles using a protractor 
Alien Blast

Blast aliens by using a protractor to measure given angles.  
C2 Demonstrate that the sum of interior angles is:

Shape Generator

Very basic demonstration that calculates the angles in shapes drawn by user. 
Strand: Shape & Space (3D Objects & 2D Shapes)
General Outcome: 
Web Links  Overviews of Web Links 
C4 Construct and compare triangles, including:

Triangle Sort

Sort triangles accroding to given properties 
Strand: Shape & Space (Transformations)
General Outcome: 
Web Links  Overviews of Web Links 
C6 Perform a combination of translation(s), rotation(s) and/or reflection(s) on a single 2D shape, with and without technology, and draw and describe the image.  Tangram Shape Generator

Tangram shape generator – develops spatial reasoning skills 
C7 Perform a combination of successive transformations of 2D shapes to create a design, and identify and describe the transformations.  Tangram Puzzle

Rotate, slide and flip the shapes to complete the puzzle 
C8 Identify & plot points in the first quadrant of a Cartesian plane using whole number ordered pairs.  Dino Dig

Locate dinos using coordinates 