Count the number of tens:

5 tens

Add up Ten-Groups

Ten-Groups = 10 + 10 + 10 + 10 + 10

Ten-Groups = 50

Count the number of ones:

0 ones

Add this to the ones for our total:

50 = 0 Hundreds + 50 Tens + 0 ones

50 = 0 + 50 + 0

Show numerical properties of 50

50

Draw this point on a number line:

Word Notation for 50

fifty

Write the number 50 in expanded notation form:

Decompose 50

Express in powers of 10

Each digit in the whole number represents a power of 10:

Take the whole number portion on the left side of the decimal

Build Expanded Notation with powers of 10

Expanded Notation of 50 = (5 x 101) + (0 x 100)

Expanded Notation of 50 = (5 x 10) + (0 x 1)

Prove this is the correct notation:

50 = 50 + 0

50 = 50 <---- Correct!

Tally Marks for 50

Make blocks of 5

Tally Marks Definition:

1 tally mark = |

2 tally marks = ||

3 tally marks = |||

4 tally marks = ||||

5 tally marks = | | | |

10 blocks of 5 and 0 left over

5 = | | | |

10 = | | | |

15 = | | | |

20 = | | | |

25 = | | | |

30 = | | | |

35 = | | | |

40 = | | | |

45 = | | | |

50 = | | | |


Tallies for 50

| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

Ordinal for 50

Define an ordinal number

A position in a list

50th

Digit and Reduced Digit Sum for 50

Calculate the digit sum of 50

Calculate the reduced digit sum of 50

Add up 2 digits of 50:

Digit Sum → 5 + 0 = 5

Since our digit sum ≤ 9:
we have our reduced digit sum

Digit Sum → 5 + 0 = 5

Digit Product for 50:

Calculate the digit product of 50

Digit Product = Value when you multiply
all the digits of a number together.

We multiply the 2 digits of 50 together

Digit product of 50 = 5 * 0

Digit product of 50 = 0

Opposite of 50

Opposite of 50 = -(50)

Opposite of = -50

Place Value for 50

Place value describes each digit

Whole Number Position 2: 50

5 is our tens digit

This means we have 5 sets of tens

Whole Number Position 1: 50

0 is our ones digit

This means we have 0 sets of ones

5 is our tens digit
0 is our ones digit

Natural Logarithm of 50

When ey = x and e = 2.718281828459
We have Ln(x) = loge(x) = y

Evaluate x = 50

Ln(50) = loge(50) = 3.9120230054281

Is 50 divisible by:

2,3,4,5,6,7,8,9,10,11

Divisibililty Check for 2

Last digit ends in 0,2,4,6,8

The last digit of 50 is 0

Since 0 is equal to 0,2,4,6,8:
then 50 is divisible by 2

Divisibililty Check for 3

Sum of the digits is divisible by 3

The sum of the digits for 50 is 5 + 0 = 5

Since 5 is not divisible by 3:
Then 50 is not divisible by 3

Divisibililty Check for 4

Take the last two digits
Are they divisible by 4?

The last 2 digits of 50 are 50

Since 50 is not divisible by 4:
Then 50 is not divisible by 4

Divisibililty Check for 5

Number ends with a 0 or 5

The last digit of 50 is 0

Since 0 is equal to 0 or 5:
Then 50 is divisible by 5

Divisibililty Check for 6

Divisible by both 2 and 3

Since 50 is not divisible by 2 and 3:
Then 50 is not divisible by 6

Divisibililty Check for 7

Multiply each respective digit by 1,3,2,6,4,5
Work backwards
Repeat as necessary

0(1) + 5(3) = 16

Since 16 is not divisible by 7:
Then 50 is not divisible by 7

Divisibililty Check for 8

Take the last three digits
Are they divisible by 8

The last 2 digits of 50 are 50

Since 50 is not divisible by 8:
Then 50 is not divisible by 8

Divisibililty Check for 9

Sum of digits divisible by 9

The sum of the digits for 50 is 5 + 0 = 5

Since 5 is not divisible by 9:
Then 50 is not divisible by 9

Divisibililty Check for 10

Ends with a 0

The last digit of 50 is 0

Since 0 is equal to 0:
Then 50 is divisible by 10

Divisibililty Check for 11

Σ odd digits - Σ even digits = 0
or 50 is a multiple of 11

Sum the odd digits:

50

5

Odd Sum = 5

Sum the even digits:

50

0

Even Sum = 0

Take the difference:

Δ = Odd Sum - Even Sum

Δ = 5 - 0

Δ = 5

Divisibility Check:

Because Δ / 11 = 4.5454545454545:
Then 50 is NOT divisible by 11

Divisibility Final Answer

50 is divisible by
(2,5,10)

Final Answer


5 is our tens digit
0 is our ones digit
Ln(50) = loge(50) = 3.9120230054281
50 is divisible by
(2,5,10)


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Common Core State Standards In This Lesson
1.NBT.B.2, 2.NBT.A.1, 2.NBT.A.1.A
What is the Answer?
5 is our tens digit
0 is our ones digit
Ln(50) = loge(50) = 3.9120230054281
50 is divisible by
(2,5,10)
How does the Number Information Calculator work?
Free Number Info Calculator - Calculates number info for a positive integer
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What 4 concepts are covered in the Number Information Calculator?
integer
a whole number; a number that is not a fraction
...,-5,-4,-3,-2,-1,0,1,2,3,4,5,...
number
an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
property
an attribute, quality, or characteristic of something
tally
a vertical line used to record counting
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