Subtraction is really Addition

Demonstration of using addition to do a subtraction.

 

Auston B Cron

 
Tip material
Foaie de lucru
Etichete
add  addition  additiveinvers  exploration  opposite-number  sub  subtraction 
Grup Ţintă (Vârstă)
11 – 14
Limbă
English
 
 
 
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