Change 10 Ones for 1 Ten

Examples, solutions, and videos to help Grade 2 students learn how to change 10 ones for 1 ten, 10 tens for 1 hundred, and 10 hundreds for 1 thousand.

Common Core Standards: 2.NBT.4, 2.NBT.3

New York State Common Core Math Grade 2, Module 3, Lesson 12

NYS Math Module 3 Grade 2 Lesson 12
Grade 2, Module 3, Lesson 12 Worksheets (pdf)

The following diagram shows how to change from ten 1’s to one 10’s and from ten 10’s to one 100’s. Scroll down the page for examples and solutions.

 

Lesson 12 Concept Development
Part A: Show the Equivalence of 10 Ones and 1 Ten, 10 Tens and 1 Hundred, 10 Hundreds and 1 Thousand

Lesson 12 Homework
Count by ones from 368 to 500. Change for a larger unit when necessary.
When you counted from 368 to 500:

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