# Subtraction With the Stamp Game

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Subtraction With the Stamp Game
Math - Arithmetical Operations
LevelPrimary
Age5+
PrerequisitesUnderstanding of Decimal System
MaterialsStamp Game Box
pencil
green pencil
blue pencil
red pencil

This activity teaches the child to do subtraction problems at a higher level of abstraction.

## Presentations

### Static Subtraction

1. Take the material to a table. No divider line is needed for subtraction.
2. Write out the problem.
3. Lay out the stamps for the first number (the minuend).
4. Slide down the unit stamps for the second number (the subtrahend). Record the amount of unit stamps still left at the top.
Then do the same for the tens, then the hundreds, then the thousands.

### Dynamic Subtraction

1. step one
2. step two, etc.

## Material

A standard stamp game set includes 81 unit stamps, 81 ten stamps, 81 hundred stamps, 18 thousand stamps, 9 unit skittles, 9 ten skittles, 9 hundred skittles, 1 thousand skittle, 9 green circles, 9 blue circles, and 9 red circles.

Prices and links checked: 23 January 2022
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Introduction to the Stamp Game
Store Price
Affordable Montessori \$33.00
Alison's \$38.58
Bruins \$91.00
E & O \$44.10
IFIT \$24.00