Addition and Subtraction as Inverse Operations
In this addition and subtraction worksheet, students 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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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
How Many Times Did You Add That?
Math whizzes practice multiplying using repeated addition. They watch a video clip from the Hershey's chocolate plant, read Hershey's Multiplication, and use grid paper to investigate multiplication as repeated addition. A page of five...
1st - 4th Math CCSS: Designed
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