Get out those hundred charts! It’s time for students to dive into subtracting multiples of ten.

Students will gain fluency with adding multiples of ten in this hands-on lesson that builds number sense.

What first grader wouldn't want ten dollars? This lesson uses one and ten dollar bills to teach students place value concepts as they develop fluency adding multiples of 10. Use alone or with the lesson plan Ten Time.

Dive deep into word problems with this lesson that teaches students to sketch base-ten blocks to add multiples of 10 and two-digit numbers. Use alone or with the lesson plan Let's Build It! Two-Digit Addition.

Who doesn’t like to spend money and plan parties? Students will subtract two-digit numbers as they calculate the remaining money for their party supplies. They will subtract in multiples of ten and focus on place value.

Get your students synthesizing various subtraction strategies as they work with a partner to solve word problems. This lesson can be used alone or with the lesson plan Show Me the Money! Two-Digit Subtraction.

Make counting fun with colorful counting bears. Students will learn that skip counting is faster than counting by ones. They will also come away from the lesson with ideas of when skip counting can be used.

Get ready to break the piggy bank! Students will use dimes and pennies in this hands-on lesson to solve for 10 more or 10 less than a given number. This EL lesson can be used alone or with the lesson plan Math Mind Magic.

Now that your first graders have mastered numbers to 100, extend the counting sequence to 120 with this scaffolded lesson. Use this EL Support Lesson alone, or alongside the lesson plan 120 Steps.

Build a solid foundation in number sense with this lesson all about the friendly number 10! Students will count with both fingers and base-ten blocks. This lesson can be used alone or with the lesson plan Place Value Concentration.

Let’s start building numbers! Just as building skyscrapers is a visual representation of mathematics, students will use the visual representation of base-ten blocks to add—or build—onto a two-digit number.

Every student can be a magician after this lesson in mentally adding and subtracting by 10. No previous magic training required!