Task Overview document

3rd Grade

3.NBT.3- Multiply one-digit whole numbers by multiples of 10 in the range 10-90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations.

Memorization

What is 70 x 9

Procedures with Math Connections

What is 70 groups of 9?
Draw a picture to support your answer.
In your picture identify all of the numbers in the task.

Procedures without Math Connections

What is 70 groups of 9?

Doing Mathematics

A pack of pencils holds 70 pencils.
If you have 9 packs how many pencils do you have?
Draw a picture to support your answer.
Write a sentence to explain how you know that you are correct.

Tasks