Activity 1: Assessment. Estimated duration: 8 min
Assessment with 8 questions chosen from Subtraction As Addition Of Additive Inverse.
8 questions assessment
Activity 2: Instructional Game. Estimated duration: 13 min
Wizard vs Orcs
Orcs are invading your castle and you are the only powerful Wizard in the Kingdom able to stop them!
Ratings
Teacher Ratings (58) 4.4 stars.
Student Ratings (3323) 3.5 stars.