Using Commutative Property of Addition Activity, studentsmatch the popcorn cards to the matching popcorn container to show examples of the property.

In this Monkey Business Adding with an Unknown Number Activity, students find the unknown whole number in addition equations up to 20.

Using Compose and Decompose Numbers 11-19 Activity, students use ten frames to compose and decompose numbers to build numbers sense.

While using our Word Problems Addition Worksheet, students solve addition word problems by drawing pictures and writing equations.

This Using a Tens Frame to Show Addition Worksheet helps students use two different colors to create a tens frame and write an equation to make 10.

While using our Finding Other Names Worksheet, students write the number pairs that match the sums that the cats are sharing to improve fact fluency.

While using our Adding Using Pictures Worksheet, students add together groups of pictures to build fact fluency.

While using our Breaking Numbers Apart Worksheet, students break apart the numbers into pairs by showing 2 ways to decompose each number.

Using If I Know This Then I Know Addition Worksheet, students solve the addition equations below by applying the commutative property.

While using our Make the Statement True Addition Subtraction Worksheet, students write the missing numbers into the equations to make the equations true.

While using our Adding Two Count the Pictures Worksheet, your students will count the pictures in the first group. They will then add two and conclude what

This K.OA.2 Kindergarten Common Core Lesson includes K.OA.2 Worksheets, K.OA.2 Activities, K.OA.2 Assessment, and K.OA.2 Poster.

In this 1.NBT.4 First Grade Common Core Lesson, students will practice adding 10 to a given number.

In this 1.NBT.5 First Grade Common Core Lesson, students practice finding 10 more and less than a given number.

In this 1.OA.1 First Grade Common Core Lesson, students find the missing addends in equations up to 20.

In this 1.OA.2 First Grade Common Core Lesson, students add three whole numbers together to solve by matching equation cards to answer cards.

In this 1.OA.6 First Grade Common Core Lesson, students will practice counting on up to 10 using a number line.

In this 2.NBT.5 Second Grade Common Core lesson, students fluently add and subtract within 100 using multiple strategies.

This 2.NBT.6 Second Grade Common Core Lesson includes 2.NBT.6 Worksheets, 2.NBT.6 Activities, 2.NBT.6 Assessment, and 2.NBT.6 Poster

In this 2.NBT.8 Second Grade Common Core Lesson, students mentally add and subtract 10 or 100 from a given number 100–900.