Place Value
1,780,234
ten thousands place
estimate. $42.14
What is 64 x 6?
384
Summer camp is about to begin. Today there are 132 boys signed up and 219 total children signed up. How many more boys than girls are signed up for camp?
Give your answer in a complete sentence.
If you read the word "about" in a word problem, what does it remind you to do?
Ex: There are 21 students in each of the four 4th grade classes. About how many students are in the whole 4th grade?
Round, Estimate
This four-digit number has a 1 in the thousands place. The number in the hundreds place is 2 times greater than the number in the ones place. The number in the tens place is 2 more than the number in the thousands place. All digits are different and are less than 5. What is the number?
1,432
Which number is in the ten thousands place? What is the value?
1,245,672
4; 40,000
What are the factors for 36?
1, 3, 4, 6, 9, 12, 36
Jen runs 1,067 minutes a month. How many minutes will she run in 4 months?
4,268 minutes
What is the Community Property of Multiplication?
a multiplication problem can be "flip-flopped" and still discover the same answer.
Ex: 4 x 6=24 6 x 4= 24
Holden has 1,900 baseball cards. His brother has 1,849 hockey cards and his sister has 1,870 volleyball cards. Write the number of sports cards in order from least to greatest.
1,849; 1,870; 1,900
Hailey earned 21,016 points on her favorite video game. Evan earned 20,985 points. Who earned the least number of points?
Evan
(23 x 4) x (45 x 6) =
24,840
DOUBLE POINTS!! Answer this correctly and your team will get a total of 600 points.
Mrs. Ellis challenged the class to read for 1 hour during the weekend. On Friday night, David read for 16 minutes. On Saturday he read for 28 minutes. How many more minutes does David have to read on Sunday to complete the challenge?
Say your answer in a complete sentence.
David has to read 16 more minutes on Sunday to complete Mrs. Ellis' challenge.
Mr. Harris bought a new car for $23,505. Mr. Thompson bought a new car for $25,305. Who paid the greater amount for their car?
Mr. Thompson
Name the place values in order from smallest to greatest. starting with the ones place and going to the hundred millions
ones, tens, hundreds, thousands, ten thousands, hundred thousands, millions, ten million, hundred million
Round to solve.
4,325 + 8,712 =
12,000
Use the box method to solve.
42 x 15 =
630
Jeff has 4 times as many roses as daffodils. He has 8 daffodils. How many roses does Jeff have?
32 roses
$0.40 , $1.40, $35, $0.35, $135, $1.35, $140
$0.35, $0.40, $1.35, $1.40, $35, $135, $140
Why is place value important?
Because it tells the value of the number,
for example: $1 vs. $100 is a big different because the place value is greater in $100 than it is for $1
Joy has 60 basketball cards. She has 6 times as many basketball cards as Lara. How many basketball cards does Lara have?
Lara has 10 baketball cards.
4,569 x 8 =
36,552
Mr. and Mrs. Timko want to buy a car that costs $9,283. Mr. Timko saves $2,405 each month for 3 months. Mrs. Timko saves $892 each month for 3 months. If they combine their money, how much will they have? Will they have enough money to buy the car?
$9,891; yes
Find the mistake.
An adult panda can eat 138 pounds of bamboo each day. How many pounds of bamboo can a panda eat in a week?
138 x 7 = pounds of bamboo each week
(100x7) + (30 x 7) x (8 x 7) = an adult panda eats 12,460 pounds of bamboo each week.
The number sentence should look like this...
(100 x 7) + (30 x 7) + (8 x 7)
the partial product that are being discovered should be added together after being multiplied, not multiplied again.