Addition (GRADE 3 US Common Core Aligned) Math Mystery "Case of The Angry Adder!" Students must use their addition math skills to discover which item can be used to capture the Angry Adder!

There are 5 clues to crack to solve the mystery:

Clue 1: Horizontal Addition (Within 100)
Clue 2: Adding 3 Numbers (2-digit and 1-digit numbers within 100)
Clue 3: Addition Input/Output Tables (3-digit Numbers within 1,000)
Clue 4: Addition Algorithms (3-digit and 2-digit numbers within 1,000. No Regrouping.)
Clue 5: Addition Algorithms (3-digit and 2-digit numbers within 1,000. Regrouping required.)

Pack also includes a mystery declaration sheet, answer sheets, elimination guide and awards.

Great activity for addition review.

Mrs J