Subtraction With the Stamp Game

Subtraction With the Stamp Game
Math - Arithmetical Operations
Level	Primary
Age	5+
Prerequisites	Understanding of Decimal System
Materials	Stamp 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.

Make Your Own

Stamp Game tiles in color	Stamp Game tiles in black and white	Math Problem Paper

• Free 3D printing pattern on Thingiverse
• Another Free 3D printing pattern on Thingiverse

Where to Buy

Prices and links checked: 05 August 2020

Subtraction With the Stamp Game
Store	Price
Absorbent Montessori	$47.00
Adena	$36.60
Affordable Montessori	$33.00
Alison's	$36.75
Bruins	$89.00
E & O	$43.20
IFIT	$22.00
Kid Advance	$27.99
Material Company of Boston	$48.00
Montessori Outlet	$32.95
Nienhuis	$99.10
Thinkamajigs	$33.95

Decimal Stamp Game Sets
Store	Price
Alison's	$44.88
Montessori Outlet	$29.95
Nienhuis	$98.80