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Surf for More Math
Chapter 3: Introducing Addition and Subtraction
Lesson 8: Representing Subtraction
Use these interactive activities to encourage students to have fun on the Web while learning about addition and subtraction. Students can try these activities on their own or in pairs.
Create and solve subtracting story problems.
Use the - symbol to represent subtraction.
[C, ME, PS]
Instructions for Use
Sign of the Minus introduces students to the minus sign.
To use Sign of the Minus, listen to the song and watch the cartoon about subtraction and the subtraction sign.
To use Count Us In, look at the subtraction problem at the top of the screen.
Type the answer in the text box. Click on the bowling ball.
If the number is correct, the ball will bowl over the correct number of pins.
Continue subtracting until there are no more pins remaining.
Click the "Play Again" button to start a new game.