Rounding Numbers
What is 36,142 rounded to the nearest thousand?
36,000
_______ a way to write numbers by showing the value of each digit
ex. 890 = 800 + 90
expanded form
109
________ to exchange amounts of equal value to rename a number
Regroup
The value of the digit 5 in 50,000 is _____ times the value of the digit 5 in 15,000.
10
Round 618,287 to the nearest hundred thousand
600,000
There are over 2,000 different species of jellyfish. The largest species have tentacles 200 feet long. How does the value of the digit 2 in 2,000 compare with the value of the digit 2 in 200?
The value of the digit 2 in 2,000 is 10 times the value of the digit 2 in 200.
(moving up in place value = multiplying by 10)
Write all of the digits that can replace the ■.
657,321 > 6■7,321
4, 3, 2, 1, and 0
What is 500,000 + 9,000 + 300 + 8 written in word form?
five hundred nine thousand three hundred eight
How can you compare the values of the underlined digits in the number 322 ,179?
The value of the digit 2 in the ten thousands place is 10 times as much as the value of the digit 2 in the thousands place.
DOUBLE JEOPARDY:
Make your wages and then I will reveal the question...
_________ describes the value of a digit in a number, based on the location of the digit.
One day, a cricket chirps 115,200 times. The next day it chirps 11,020 times. How many times as great is the value of the digit 2 in 115,200 than the value of the digit 2 in 11,020? How do you know?
The value of the digit 2 in 115,200 is 10 times as much as the value of the digit 2 in the 11,020.
7 X __ = 42
6
23 ten thousands = _____ tens
23 ten thousands = ______ hundreds
23 ten thousands = ______ thousands
230,000
23,000 tens
2,300 hundreds
230 thousands
* How can the brackets below the place-value chart help you regroup and rename the number? Each bracket tells how many places of the number are needed to rename the number using that place-value position.
Which number will make both comparisons true?
37,481 < _________
________ < 38,697
A. 37,399
B. 37,454
C. 38,121
D. 38,733
B. 37,454
A number rounded to the nearest hundred thousand is 600,000. The same number rounded to the nearest ten thousand is 650,000. Which of these could be the number?
a. 642,871
b. 654,732
c. 648,329
d. 661,428
c. 648,329
A beekeeper studies a colony of honeybees that has 1 queen bee, about 250 male drones, and about 37,250 female worker bees. Write the value of the digit 7 in 37,250 in two different ways.
7,000 and 7 thousand
9 X __ = 81
9
Select all the correct ways to regroup and rename the number 720,000.
A. 720 tens
B. 7,200 hundreds
C. 720 thousands
D. 72 ten thousands
E. 72 hundred thousands
b. 7,200
c. 720 thousands
d. 72 ten thousands
DOUBLE JEOPARDY:
Make your wages.
Max rolls four number cubes. The number cubes show 3, 5, 1, and 4. What are the GREATEST and LEAST possible four-digit numbers Max can make with those digits?
The state of New York has a total area of 54,555 square miles. What is the total area of New York rounded to the nearest ten thousand square miles?
50,000 square miles.
The praying mantis collection at a museum includes 13,000 specimens, while another museum has a collection of 300 specimens. How many times as great is the value of the digit 3 in 13,000 than the value of the digit 3 in 300?
(Moving up in place value = you multiply by 10)
Bobby has 8 toy cars with 4 wheels on each car. How many wheels are there?
32 wheels
Students at a school collected 11,000 cans of food for the community food pantry. They can pack the cans in boxes of 100 to take them to the pantry. How many boxes will they need to pack all of the cans?
110 boxes
*use your bracket*
A baseball team sold 234,887 tickets to their games in June, 229,531 tickets in July, and 256,832 tickets in August.
Order the numbers from greatest to least.
256,832; 234,887; 229,531