Estimation
Estimate the product 3x 287
3 x 300 = 900
Seven rooms are available for meetings. Each room can hold 56 people. Write and solve an equation that can be used to find the total number of people the rooms can hold?
7 x 56 = 392
Write all of the partial products for 4 x 296
24
360
800
4,307 x 4 = n
n = 17,228
Draw place value blocks to show:
103 x 4
Image
Estimate the product: 9 x 4,720 =
9 x 5,000 = 45,000
Josiah bought an 6-roll package of paper towels. Each roll has 87 towels.
Which is the best estimate for the total number of paper towels Josiah bought?
540 paper towel
Write all of the partial products for 4 x 509 = ? And solve the equation.
4x500 = 2,000
4x9 = 45
4x509 = 2,045
2,894 x 8 = n
n = 23,152
Write an expression to show how to use breaking apart to find 7 × 593. (Distributive property)
(7x500)+(7x90)+(7x3)= 4,151
In one week, the Waffle House sells 1,254 waffles.
Estimate how many waffles are sold in 6 weeks?
Solve for the total product. Was your answer reasonable?
Estimation: 7,200
Total Product: 7,524
There are 33 cows in the field of a farm. There are four times as many cows in the barn.
How many cows are there in all?
165 cows
A parking lot has 5 rows for parking. If 129 cars can park in each row, how many total cars can park in the parking lot?
645 cars
The Appalachian Trail is 2,582 miles long. How long would a trail be if it were 3 times the length of the Appalachian Trail?
7,746 miles long
Mrs.Vejraska places 8 copies of a 243-page textbook on her desk.
Draw a bar diagram to show how many total pages are in the books?
See boards
Ella estimates the product of 211 and 6 is 1,800. Is this estimate reasonable? Explain.
No. Round 211 to 200 and multiply by 6 to get 1,200.
Show how multiplication distributes over subtraction to find the product of 3 x 298. Use 298 = 300 and the distributive property.
3 x (300-2)
(3x300) - (3x2) =894
Mrs. Calvert bakes cookies in batches of 50 and batches of 120. If she bakes 6 batches of 120 cookies,
how many cookies does she bake?
720 cookies
The Young family spends $1,738 a year for gym memberships. How much does the family spend in 3 years?
$5,214
Chick-fil-a sells 3,125 chicken sandwiches each month. At this rate, how many sandwiches will be sold in 6 months? Draw a bar diagram to show the number of sandwiches sold in 6 months.
18,750 sandwiches.
Fourth graders chose to have a read-a-thon for one hour. Each of the four fourth grade classes read 408 pages. ABOUT how many pages did all of the fourth graders read?
About 1,600 pages
A pet shop has 6 Sphynx kittens and 7 Persian kittens for sale. The Sphynx kittens cost $775 per kitten. The Persian kittens cost $698 per kitten. If ALL the kittens sell, how much will the pet shop make?
6x 775 = 4,650
7x698=4,886
4,650 + 4,886 = $9,536
Asher has 6 times as many legos as Cadence. Cadence has 34 legos. Raven have 202 legos. Who has more legos, Asher, Cadence or Raven?
Asher have 204 marbles.
A semi-truck trailer has a load capacity of 25,900 pounds. A trucker is asked to haul 5 crates on the trailer. Each crate weighs 4,450 pounds. Can the trucker haul all 5 crates in one load? Show your work.
Yes. 5 crates weigh 22,250 pounds. That is less than 25,900 pounds.
Show 2 different ways to solve the problem: Each wheel on a roller coaster turns 3,888 times during the ride. How many times will each wheel turn during 2 rides?
7,776 times.
Must show 2 DIFFERENT ways