DO NOW For 902,798 write the digit in the hundreds place 6 X 2 Can 351 be divided evenly by 2 80 / 8 What is the time 3 hours after 9 pm

Place Value to the billions, whole numbers, standard notation and base systems August 28, 2013

What is place value? Place value chart- shows the value of the digits in a number Period- in greater numbers each group of three is divided with a comma is called a period Place value- name and value of a number in a certain position Standard form- is the way a number is commonly written

Place value to the billions

Pattern? When the number goes from ones to tens it is multiplied by 10 When the tens are multiplied by 10 it becomes 100. When the hundreds are multiplied by ten it becomes 1000.

Practice In your groups using the unit cubes, display these numbers and draw them as well as you can in your journals. 1,532 25 862 712

What is a base system? We use the base system of 10. This means that in the number 456 There are 6 ones (1 X 6) The value in the tens is 50 (5x10) The value in the hundreds is 400 (4*100) Each number gets multiplied by 10 to find its value in a number.

Base systems Why do we use them? Does it make our lives easier? Yes? No? Could you figure out a different base system?

What is or isn’t a number 123,456,789 – yes 012,345,678- No, numbers can not start with a zero in the front

Break these numbers into periods 751,156,456 1,458,753,159 125,456 852,741,963

Write these numbers in standard notation Five hundred sixty two Two thousand three hundred seventy one Five hundred seventy two thousand one hundred ninety five

What is in the _____ place? 156 845,156,123 95,874,563,145 25 863,456,120

Homework Place value practice: phoney baloney, September star stinkers