Interactive
ABCya

Ab Cya: Base Ten Blocks

For Students K - 1st Standards
ABCya! Base Ten Blocks virtual manipulatives is to help students learn mathematical concepts including addition, subtraction, number sense, place value and counting.
Interactive
ABCya

Ab Cya: Base Ten Fun

For Students Pre-K - 1st Standards
Base Ten Fun is an educational virtual manipulatives activity for kids learning place value, addition and subtraction. Base Ten Fun is highly customizable; kids can select from ones, tens and hundreds.
Lesson Plan
George Mason University

Lesson Plans: Whole Number Algorithms Base Ten Blocks

For Teachers 3rd - 8th Standards
Brief lesson plans that show how to use base ten blocks to do all four operations and a little bit of algebra.
Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: Base Ten Bag (Subtraction) [Pdf]

For Teachers 3rd - 5th
Students are to work with a partner to practice subtraction. Materials needed:Base 10 blocks (9 tens and 9 ones), numeral cards (0-9) and a paper bag.
Lesson Plan
Alabama Learning Exchange

Alex: Three Digit Subtraction

For Teachers 3rd - 5th Standards
This lesson uses technology and literature to teach subtraction of three-digit numbers, including subtraction across zeros.
Interactive
Study Pad

Splash Learn: Common Core Math Standards 1.nbt.6

For Students K - 1st Standards
[Free Registration/Login Required] Practice subtracting multiples of 10 with this online game! Choose the correct answer to the question to collect coins. Problems are shown using base ten blocks as examples or number sentences.
Lesson Plan
Other

Nearpod: Subtraction With Regrouping: Two Digit

For Teachers 2nd - 4th Standards
In this instructional activity on subtraction, students will use the break apart strategy, draw a model, or the standard algorithm to subtract 2-digit numbers.
Whiteboard
SMART Technologies

Smart: Subtraction Strategies Using Base 10 Blocks

For Teachers 2nd
Everyday Math Lesson 6.5 using base-10 blocks.
Lesson Plan
Better Lesson

Better Lesson: Mentally Speaking!

For Teachers 2nd Standards
Using base ten blocks and place value, 2nd graders explore how to become more fluent in adding and subtracting two-digit numbers without regrouping.
Lesson Plan
Better Lesson

Better Lesson: Put It Together and Take It Apart

For Teachers 2nd Standards
Second graders increase their understanding of place value by manipulating larger numbers.