Compensation Method in Division

This video tutorial introduces the mental math strategy of compensation, focusing on division. It explains how to simplify division problems by adjusting the divisor and dividend to create equivalent quotients that are easier to compute mentally. The video provides three examples: 85 divided by 5, 112 divided by 4, and 84 divided by 14, demonstrating how to make divisors more 'friendly' by multiplying or dividing them, and applying the same operation to the dividend to maintain equivalence.

What is the main focus of the compensation method discussed in the video?

• Division

• Multiplication

• Subtraction

• Addition

Tags

CCSS.4.NBT.B.6

In Example 1, what operation is performed on both the divisor and the dividend to simplify 85 divided by 5?

• Division

• Addition

• Subtraction

• Multiplication

Tags

CCSS.4.NBT.B.6

After applying the compensation method in Example 1, what is the new division problem?

• 170 divided by 5

• 85 divided by 10

• 170 divided by 10

• 85 divided by 2

Tags

CCSS.4.NBT.B.6

In Example 2, what is the first step to make the divisor more friendly?

• Add 2 to the divisor

• Multiply the divisor by 2

• Divide the divisor by 2

• Subtract 2 from the divisor

Tags

CCSS.4.NBT.B.6

What is the equivalent division problem after applying compensation to 112 divided by 4?

• 56 divided by 2

• 28 divided by 2

• 112 divided by 2

• 56 divided by 4

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

What is the final quotient of 112 divided by 4 after using the compensation method?

• 14

• 28

• 56

• 112

Tags

CCSS.6.EE.A.1

In the further simplification of Example 2, what is the new divisor after dividing by 2 again?

• 4

• 2

• 1

• 0

Tags

CCSS.3.OA.C.7

What is the final quotient of 56 divided by 1?

• 28

• 56

• 1

• 0

Tags

CCSS.4.NBT.B.6

In Example 3, what is the first step to simplify 84 divided by 14?

• Multiply the divisor by 2

• Divide the divisor by 2

• Subtract 2 from the divisor

• Add 2 to the divisor

Tags

CCSS.4.NBT.B.6

CCSS.5.NBT.B.6

What is the final quotient of 84 divided by 14 after using the compensation method?

• 6

• 7

• 12

• 14

Tags

CCSS.4.NBT.B.6

CCSS.5.NBT.B.6