Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
Develop a love of addition facts with this multiplayer Valentine’s Day board game.
Practice the “near doubles” addition strategy to solve addition problems to 20.
Practice the “counting on” addition strategy to solve addition problems to 20.
Practice the “using doubles” addition strategy to solve addition problems to 20.
A 2-page worksheet that uses ten frames to model the “making ten” addition strategy.
Practice using the strategy of using base-10 blocks and regrouping to find the sum.
Solve the missing addition sentence by matching the addend with its equation, completing the puzzle.
Build addition strategies using digits 1-10 with this two-page decomposing numbers worksheet.
Solve addition problems in this 2-page Counting On Addition Worksheet.
Addition and subtraction game cards demonstrating the relationship between fact families.
A set of 16 task cards that include word problems practicing addition and subtraction with 10.
Practice addition and subtraction within 10 with this set of 18 word problem task cards.
A PowerPoint for students to interact with when practicing addition facts.
A worksheet to practice the addition strategy of making 10.
A ten frame mat and a double ten frame mat to use in a variety of ways.
A set of flashcards to use when working with the addition strategy 'Making Ten'.
An activity to practice making 10 using objects, pictorial models, and number sentences.
A PowerPoint providing a series of warm-up activities for Grade 1 students across the mathematics curriculum.
Build number sense skills with this set of 24 task cards.
Build number sense skills with this set of 24 task cards.
Build number sense skills with this set of 20 task cards.
A light box insert to use in your light box when teaching about the strategy 'Making 10'.
A hands-on game to play when learning about adding larger numbers.
A 19-page editable PowerPoint to use in the classroom when introducing addition and subtraction fact families.
A sorting activity to demonstrate an understanding of fact families.
A fill and sort activity to demonstrate an understanding of addition and subtraction fact families.
A sorting activity to demonstrate an understanding of addition and subtraction fact families.
A fun and simple adding and subtracting activity.
9 posters outlining mental math strategies for addition.
A set of 10 fun brainteasers for your students in lower grades.