Digit Sum Calculations and Operations

Digit Sum Calculations and Operations

Assessment

Interactive Video

Mathematics, English, Science

5th - 8th Grade

Hard

Created by

Jackson Turner

FREE Resource

The video tutorial introduces a fascinating calculation involving three-digit numbers with identical digits. It demonstrates that dividing such a number by the sum of its digits consistently results in 37, using examples with 333 and 777. The video concludes by inviting viewers to explore a linked proof for this phenomenon.

Read more

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in the curious calculation described in the video?

Subtract the digits of the number

Multiply the digits of the number

Divide the digits of the number

Sum the digits of the number

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you have a number 333, what is the sum of its digits?

6

9

15

12

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What operation is performed after summing the digits of the number?

Add the sum to the original number

Divide the original number by the sum

Multiply the original number by the sum

Subtract the sum from the original number

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When dividing 333 by the sum of its digits, what is the result?

27

37

47

57

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the consistent result when performing the calculation with numbers like 333 and 777?

47

37

57

27