# Understanding Numbers.

## Presentation on theme: "Understanding Numbers."— Presentation transcript:

Understanding Numbers

Place Value/Face Value
Face value is 4 Each digit in a number has a place value and a face value. In the number 4856, the digit 4 is in the thousands place value. Meaning the place value is thousands. The number you see (4) is the face value. 4856 Place value is thousands

A place value chart helps us to read and understand large numbers.

THOUSANDS BILLIONS UNITS ones, tens, hundreds MILLIONS

LFH JBG CIA EKD Hundred Billion Hundred Thousand Ten Thousand
Ten Billion Thousands Billion LFH JBG CIA EKD Hundred Million Millions Ones Ten Million Hundreds Tens

Saying Large Numbers Understand place value helps us say large numbers properly When saying large numbers you should: A) start with the largest place value grouping B) say what you see, then say the grouped place value C) continue until all number have been read

Try These

Writing Numbers In Words
When writing numbers in words you write exactly what you say: Four hundred nine million, three hundred twenty thousand, one hundred ninety-nine

Try These Two hundred sixty four thousand, five hundred three
Ninety million, sixty-two thousand four Seven hundred five million, twenty-two Five hundred sixty-three thousand, four hundred thirteen Two billion, three hundred million, seven thousand, sixteen

Standard and Expanded Form

When numbers are presented in numerical digits, it is called the standard form of a number.
4856 Standard Form

Numbers can also be represented in expanded form.
This means writing the value of a number using the face value and place value of each digit. The number 4856 in expanded form is: Method a) Method b) 4 x x x x 1

Try These 3982 23 508 3 x x x 8 x x x 1 6 x x x 100 + 5 x x 1

Try These 3 x x x 100 + 8 x x x 10 6 x x x 5 x x 100

Expanded Form Using Powers of 10

Expanded Notation Using Powers of 10
Numbers can also be written in expanded form using powers of 10 We will call this expanded form Method C Knowing Method A and B makes method C easy

The number 4856 in expanded form is:
Method a) Method b) 4 x x x x 1 Method c) 4 x x x x 100

Try These 32 906 53 800 40 641 7 x x x x 100 9 x x x x 101 5 x x x x 100