Division Strategies and Remainders

The video introduces the Big 7 Strategy for long division, which uses estimation and critical thinking. It provides three examples: dividing 861 by 7, 364 by 14, and 373 by 5, demonstrating the process and handling remainders. The video concludes with instructions for practice and encourages students to use multiples of 10s and 5s to simplify calculations.

What is the primary purpose of the Big 7 Strategy?

• To help understand long division through estimation

• To improve addition skills

• To make multiplication easier

• To memorize division tables

In the first example, what is the first step in solving 861 divided by 7?

• Multiply 7 by 861

• Divide 861 by 10

• Estimate how many times 7 fits into 861

• Subtract 7 from 861

How many times does 7 fit into 161 in the first example?

• 15 times

• 10 times

• 5 times

• 20 times

What is the final result of 861 divided by 7 using the Big 7 Strategy?

• 130

• 125

• 123

• 120

In the second example, what is the first group taken out when dividing 364 by 14?

• 14

• 28

• 70

• 140

What is the result of 364 divided by 14 using the Big 7 Strategy?

• 26

• 24

• 25

• 27

In the third example, why is there a remainder when dividing 373 by 5?

• Because 373 is an even number

• Because 373 does not end in 5 or 0

• Because 373 is less than 500

• Because 5 is a prime number

What is the remainder when 373 is divided by 5?

• 2

• 3

• 1

• 4

What is the final result of 373 divided by 5 using the Big 7 Strategy?

• 77 remainder 0

• 75 remainder 2

• 76 remainder 1

• 74 remainder 3

What should students focus on to make the Big 7 Strategy easier?

• Memorizing division tables

• Learning subtraction shortcuts

• Using multiples of 10s and 5s

• Practicing addition