Stamps come in sheets, strips, and singles. Young mathematicians use their knowledge of hundreds, tens, and ones to determine how many stamps Mike has altogether.

Concepts

counting, expanded notation, ones, tens, hundreds

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Additional Tags

math

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Instructional Ideas

• Use as a warm up to a lesson that focuses on the task's Common Core standard

Classroom Considerations

• Assumes learners can count in groups and understand what expanded notation is

Pros

• Comes with an answer key that can be used the teacher as a guide for implementing instruction
• Quick and easy to use in the classroom
• Requires pupils to explain their thinking and represent their answers in numbers and drawings

Cons

• None

Common Core

2.NBT.A.1.a