Curated OER
Inverse
Your class can learn all about inverse operations. They will review what inverse operations are, see examples, learn how to use inverse operation to check an answer, write addition and subtraction equations in the inverse, and use the...
Curated OER
Solving Equations
How do you solve a problem when a symbol or letter is used in place of a missing number? Build algebraic reasoning and problem solving skills with this presentation that explains three methods for finding a missing variable. The guess...
Curated OER
Inverse Relationships (16)
In this math operations activity, students use the given information to fill in each box to complete the inverse operation equations. They fill in 60 boxes as they complete the pairs of equations.
Curated OER
Inverse Relationships: Multiplication and Division (A)
In this math worksheet, students discover inverse relationships in multiplication and division. Students complete 20 problems, which are worded like this: since 7x5=35, then 35 divided by 7 = ____. All problems involve basic math facts...
Google
Properties of + and x Foldable
Clarify for young scholars the basic properties of addition and multiplication with this foldable math resource. Written on the front flaps are the terms commutative, associative, identity, and inverse with algebraic equations on the...
Curated OER
Inverse Relationships Mult/Div (D)
In this multiplication and division inverse operations worksheet, students fill in the blanks in 16 multiplication and division sentences with the appropriate numbers based on inverse relationships.
Noyce Foundation
Perfect Pair
What makes number pairs perfect? The resource provides five problems regarding perfect pairs of numbers, the definition of which changes in complexity with each task. Solutions require pupils to apply number sense and operations, as well...
Curated OER
Cups and Cubes
Third graders explore the use of cups and counters as a model to analyze the effects of operations. They create and use a rule to create a sequential pattern and use cups and cubes to model the relationship.
Curated OER
Clock Arithmetic and Cryptography
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills.
Curated OER
Dividing by 3's
Third graders review and practice strategies for solving division problems. In this division by 3's lesson, 3rd graders play games, use an interactive whiteboard, create flashcards, and solve word problems.