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Addition and Subtraction as Inverse Operations
In this addition and subtraction activity, learners work with the inverse operations. They fill in the boxes in 8 examples using mental math. They look at the addition problems and fill in the blanks in the subtraction problem and vice versa.
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Fraction Equivalence, Ordering, and Operations
Need a unit to teach fractions to fourth graders? Look no further than this well-developed and thorough set of lessons that takes teachers through all steps of planning, implementing, and assessing their lessons. Divided into eight...
3rd - 5th Math CCSS: Designed
Tricky Word Problems - Choosing the Operation
Decipher the equations in these addition and subtraction word problems. Two examples at the top of the page guide second graders as they solve the rest of the problems. There is no space to write out the equation, but there is a place to...
2nd - 3rd Math CCSS: Adaptable
Solving Two-Step Word Problems Involving Addition and Subtraction of Whole Number Including Money
Young scholars determine how to write equations to solve two-step word problems using addition or subtraction. In this word problem lesson, students review number facts and problem solving steps. They apply the problem solving steps as...
2nd - 4th Math
Study Jams! Relate Addition & Subtraction
Understanding the inverse relationship between addition and subtraction is essential for developing fluency in young mathematicians. Zoe and RJ explain how three numbers can form fact families that make two addition and two subtraction...
1st - 4th Math CCSS: Adaptable