Math Intervention 3–5 Grade

Addition and Subtraction Concepts 23

Rigorous Problem Solving with the Concept
of Total and Parts 2

The teacher gave each student 10 stickers.

Kassidy placed 2 stickers on her folder, 6 stickers on her
agenda, and some stickers on the class chart.

Danielle placed 5 stickers on her folder, some stickers on her
agenda, and 2 stickers on the class chart.

Samantha placed some stickers on her folder, 3 stickers on her
agenda, and 4 stickers on the class chart.

Part A

Which equations represent the students’ stickers?

o 5 + 5 = 10
o 5 + 2 = 7
o 2 + 6 + 1 + 1 = 10
o 2 + 6 + 2 = 10
o 3 + 3 + 4 = 10
o 2 + 6 = 8
o 3 + 3 + 4 = 10
o 5 + 3 + 2 = 10
o 6 + 6 = 12

Part B

How many stickers were placed on the class chart?

How many stickers were placed on the agendas?

How many stickers were placed on the folders?

Justify your answers with equations.