Exploring Inverse Operations in Mathematics

Mr. Mapps introduces the concept of inverse operations, explaining that the inverse of addition is subtraction and the inverse of multiplication is division. He provides examples to illustrate these concepts, such as reversing addition problems to subtraction and multiplication problems to division. The video emphasizes the importance of knowing times tables to solve division problems quickly by conceptualizing them as multiplication problems. Mr. Mapps concludes by highlighting the practical applications of inverse operations in solving math problems.

What is the inverse operation of addition?

• Division

• Subtraction

• Multiplication

• Addition

Tags

CCSS.HSA.REI.A.1

If 5 + 3 = 8, what is the inverse operation?

• 5 - 3 = 2

• 8 - 3 = 5

• 8 + 3 = 11

• 5 + 8 = 13

Tags

CCSS.2.NBT.B.5

What is the result of reversing the operation 7 + 3 = 10?

• 10 + 3 = 13

• 10 - 3 = 7

• 7 - 3 = 4

• 7 + 10 = 17

Tags

CCSS.2.NBT.B.5

What is the inverse operation of multiplication?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.HSA.REI.A.1

If 3 x 2 = 6, what is the inverse operation?

• 3 / 2 = 1.5

• 3 x 6 = 18

• 6 / 2 = 3

• 6 x 2 = 12

Tags

CCSS.4.NBT.B.6

What is the result of reversing the operation 7 x 3 = 21?

• 21 x 3 = 63

• 21 / 3 = 7

• 7 / 3 = 2.33

• 7 x 21 = 147

Tags

CCSS.3.OA.C.7

Why is knowing your times tables important?

• It helps in quick subtraction.

• It helps in quick multiplication.

• It helps in quick addition.

• It helps in quick division.

Tags

CCSS.3.OA.C.7

If 81 / 9 = ?, what multiplication problem can help solve this?

• 9 x 8 = 72

• 9 x 7 = 63

• 9 x 9 = 81

• 9 x 6 = 54

Tags

CCSS.4.NBT.B.6

How can division problems be conceptualized?

• As division problems

• As multiplication problems

• As addition problems

• As subtraction problems

Tags

CCSS.3.OA.A.2

What is the inverse operation of 81 / 9?

• 9 x 9

• 81 x 9

• 81 + 9

• 9 / 81

Tags

CCSS.3.OA.C.7