Place value in whole Numbers and concepts
7 [1,000s] + 6 [100s] + 9 [10s] + 2 [1s]
1,,692
856 to the nearest 10
860
estimate 646+738
one answer is 600+700 = 1,300
Write this in standard form:
10,000+4,000+ 500+90+2
14,592
write the number in expanded forms for 8,549
8000+500+40+9
or
8[1000]+5[100]+4[10]+9[1]
The Millennium Force roller coaster is 6,595 feet. Round to the nearest thousand.
7,000
estimate the answer for the following using rounding to estimate:
Rob, Bryan, and Ari need at least 950 popsicles for the school picnic. Rob bought 463, Bryan bought 226, and Ari bought 312. Do they have enough popsicles?
remember the other rounding strategies are:
round 6,100 to the nearest hundred
6,100
write <,>, or =
a. 767 ____776
b. 63,412 _____983,412
c. 34-30 ______ 4+0
a. <
b. <
c. =
Round 129,00 to the nearest ten-thousand
130,000
use front end estimation for the following:
On Sunday 463 people were at the lake. On Monday 226 people were at the lake, and 312 were there on Tuesday. Estimate how many people in all were at the lake.
What is 463 rounded to the nearest hundred? 500
226? 200
312? 300
500 + 200 + 300 gives us an estimate of about 1,000 people.
Remember: front-end estimation, in which the digit in the highest place value remains the same, while all the digits in the smaller place values change to zeros.
what place is the 7 in?
807,069, 258
Million
identify the place of the digits in the numbers 65,721.
a. the 7 is in the ___________ place
b. the 5 is in the _________ place
c. the 6 is in the_________ place
a. the 7 is in the hundreds place
b. the 5 is in the thousands place
c. the 6 is in the ten-thousands place
Round 130,469 to the nearest hundred thousand
100,000
using close to estimation to solve the following:
On Sunday 463 people were at the lake. On Monday 226 people were at the lake, and 312 were there on Tuesday. Estimate how many people in all were at the lake.
What is a close-but-easier number for 463? 450
For 226? 225
For 312? 300
So 450 + 225 + 300 gives us an estimate of about 975 people.
write a number with the following numbers 700,1000,50,2 as they are in their places. Make sure you write it in expanded form and standard form
1,752
1000+700+50+2
identify the place values of the digits in the number 8,562.
a. the digit 2 represents
b.the digit 8 represents
c. the digit 6 represents
d. the digit 5 represents
a. 2
b. 8000
c. 60
d. 500
round 563,626 to the nearest 100,000
600,000
All students would receive a free book if they read a total of 20,000 books by the end of the year. did the students have enough books? show your work.
Quarter number of books
first 6,530
second 5,870
third 4,460
fourth 4,780
yes, answers may vary
using front end estimation:
On the walk to school, Meg stopped at the library for 22 minutes and at her grandmother's house for 38 minutes. She spent 17 minutes walking. She left at 3:00and was supposed to be back at 4:00. Did she make it on time?
20+30+10=60
no she did not because I used front end and it tells me she barely made it so no.
3,000 * 600
1,800,000