2018 Summer Game #10: Short Chain Subtraction

There are many variations of the chain games and our family has played most of them as solitaire games. Nicholas, Chiara, and Ian played Short Chain Subtraction today, game S18 in the Math Card Games book, and had a great time! This variation is a … [Read more...]

2018 Summer Game #9: Difference of Two Squares

As the temperature rises, you may be looking for a non-competitive game. The Difference of Two Squares, game P35 in the Math Card Games book, hits the spot. It's like a puzzle that two people work on together. You will need 20 basic number cards. … [Read more...]

2017 Summer Game #13: Zero Corners

It usually starts around April if you follow a traditional school year, an excitement that school is winding down and soon to come to an end. Then before you know it, another school year done. Whew! It’s summertime! Now, I do have my children … [Read more...]

2017 Summer Game #12: Ten as the Minuend

When I started using RightStart Math, I would play many of the games suggested, but my family had our favorites. We would play the same games – or variations of them – over and over, quite content to not explore the unknown games in the Math Card … [Read more...]

Dr. Cotter on Subtraction Approaches

There are at least eight different ways to subtract multi-digit numbers. Even though a person has learned one method, it is good to explore other methods to enhance understanding. If a child has an accurate and efficient method of subtraction, do … [Read more...]

RS2 Level C, Lesson 53: Subtraction Puzzle

There’s been some chatter on the forum groups about RS2 Level C, Lesson 53 and Lesson 54 and the Worksheet 25. I thought this would be a dandy topic for this week’s blog. Here’s the worksheet in question. It’s asking the child to complete the … [Read more...]