2nd Grade Math - Math Galaxy

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"The French mathematician Jacques S. Hadamard found, in a study of 100 leading mathematicians], that the majority of them were primarily visual in their approach.   Some [including Einstein] went further back to sensations of a kinesthetic kind."
Scientific American, Sept., 1984, p. 56. 

Preview on YouTube:  www.youtube.com/watch?v=PmNKHr5FGYM

5 star EducationAppStore review:  https://web.archive.org/web/20230609201057/https://www.educationalappstore.com/app/2nd-grade-math-math-galaxy

Math Galaxy’s Second Grade Math covers all Common Core math standards for second grade as listed below.
The concepts are presented in bite-size pieces with an unlimited supply of practice problems and numbers chosen randomly.
Illustrations are used throughout to reinforce the concepts.
There are review sections and you can be guided through problems step-by-step or just give the final answer.

Now also supports Apple Schoolwork.

NUMBER AND OPERATIONS IN BASE 10   (2.NBT)

Understand place value.  (2.NBT.A.1-4)

Place Value Blocks 
Place Names
Expanded Notation
Comparing Numbers

Use place value understanding and properties of operations to add and subtract.  (2.NBT.B.5-9)

Addition Tables
Addition on the Number Line
1-Digit Addition
2-Digit Addition
3-Digit Addition
Alternative Method
Subtraction on the Number Line
1-Digit Subtraction
2-Digit Subtraction
3-Digit Subtraction
Borrowing Across 0s
Missing Number
Alternative Method
Skip Counting                        (2.NBT.A.2)

OPERATIONS AND ALGEBRAIC THINKING  (2.OA)

Represent and solve problems involving addition and subtraction

1-Step Word Problems          (2.OA.A.1)
Multi-Step Word Problems   (2.OA.A.1)

Add and subtract within 20.  (2.OA.2)

Adding Whole Numbers
Subtracting Whole Numbers
Snakes and Ladders Math Game

Work with equal groups of objects to gain foundations for multiplication

Multiplication Tables Up To 5  (2.OA.C.3-4)
Multiplication Tables - All         (2.OA.C.3-4)

MEASUREMENT AND DATA  (2.MD)

Measure and estimate lengths in standard units.

Measuring with Objects.               (2.MD.A.1)
Measuring Inches & Centimeters (2.MD.A.1-3
Measuring in Standard Units
Measuring in Metric Units

Work with time and money.

Time - Clock Problems              (2.MD.C.7)
Time - Word Problems              (2.MD.C.7)
Math Games - Time Riddles      (2.MDC..7)
Math Games - Money Riddles   (2.MD.C.8)
Math Games - The MoneyTrail  (2.MDC..8)

Represent and interpret data.

Measuring in Standard Units  (2.MD.D.9)
Measuring in Metric Units     (2.MD.D.9)
Pictographs                             (2.MDD..10)
Reading Bar Graphs               (2.MDD..10)
Drawing Bar Graphs              (2.MD.10)

GEOMETRY  (2.G)

Reason with shapes and their attributes.

Shapes - Terminology  (2.G.A.1)
Classify Shapes            (2.G.A.1)
Area & Perimeter  (2.G.A.2-3)
     Missing Number
     Area & Perimeter
     Squares & Rectangles
     Complex Areas
Fractions          (2.G.A.3)

MATH GAMES

Labyrinth (Search mazes for treasure)
Snakes & Ladders (Addition, Subtraction & Multiplication)
Bridge the Swamp
Time Riddles
Money Riddles
The Money Trail
Time - Matching Digital & Analog
Money
Classifying Shapes
Word Problems
Counting by 1s to 10s
Add & Subtract to 100