Jack-o-lantern
Candy Corn
Costumes
Ghosts
Spooky
100

21x40

840

100

Don works 18 hours  a week.  Which expression shows a good way to use rounding to estimate how  many hours Don will work in 52 weeks?  

A. 10x50

B. 10x60

C. 20x50

D. 18x60

C

100

12 x 83

996

100

86 x 68

5,848

100

23 x 54

1,242

200

A factory makes 132 laptops  each day.  How many laptops does the factory make in 45 days?

5,940

200

Antonio practices piano for 30 minutes  each day.  How many minutes does Antonio practice in 60 days?

1,800

200

There are 26 bottles  of paint in one set.  How many bottles of paint are in 52 sets?

1,352 bottles

200

The product of two factors is 2,000. One  of the factors is 50. What  is the other factor?  

A. 20

B. 40

C. 200

D. 400

B. 40

200

Which is the best estimate for 176 x 742 ?  

A. 140,000

B. 160,000

C. 180,000

D. 200,000

A.

300

A florist makes centerpieces.  He puts 18 roses  in each centerpiece.  Which is the best way to use compatible numbers to estimate the  number of roses the florist needs for 24 centerpieces?  What is the exact number of roses? 

A. 10x25=250; 360

B. 20x25=500; 432

C.25x30=750; 672

D. 30x30=900; 784

B. 20x25=500; 432

300

Select all the expressions that are equal to 260.

A. 23x10

B. 20x10+3x10

C. 13x 20

D. 1x20 +3x20

E. 10x20 + 3x20

C, E

300

Lorin drew an area model to find . Write the partial product for each rectangle in the area model.

A=100

B=50

C=90

D=45

300

One box has 27 jars  of strawberry jam.  How many jars are in 82 boxes? 

A. 2,160 jars

B. 2,204 jars

C. 2,214 jars

D. 2,224 jars

C

300

Which of the following uses properties of operations to help find 27x 14 ?

A. 20+7+10+4

B. 20x7x10x4

C. 27+14

D. (20+7)x(10+4)

D.

400

Which is the product?  700 x 900

A. 630

B. 6,300 

C. 63,000

D. 630,000

D.

400

Jack’s  landscape service charges $78 to  plant a tree.  What is the total cost to plant 18 trees  on Tuesday and 23 trees  on Wednesday?  Write and solve equations

18+23=41

78x41= 3,198

400

Which number makes the equation true?  

4x_____=16,000

A. 4

B. 40 

C. 400

D. 4,000

D

400

Manuela goes to school 180 days  this year.  Each day,  she spends 425 minutes  at school.  About how many minutes does Manuela spend at school this year?

about 80,000 minutes

400

Concert tickets each cost $54. There are 448 seats  in the theater.  How much money does the theater collect from ticket sales for a sold-out  show?

$24,192

500

Check if Avery’s  work is reasonable.  Correct the work if needed.  

     92

x   43

________

    186

+ 368

______

554


3x9=27

add a zero in the tens

500

Select all products with an estimate close  to 150,000. 

A. 288x491

B. 482x327

C. 313x507

D. 368x642

E. 375x231

    


 

    


 

    


 

    


 

 

A,B,C

500

Liz makes necklaces.  Each has 16 beads.  Use the numbers in the box to complete the table.  

10            160

30            480

50            800

90           1,440

500

Company Number of Trips Number of Packages per Trip

Transport Truck       80               60

Trusty Wheels          96              54

Cargo Express          78             35

How many packages does Transport Truck deliver in a month?

4,800 packages

500

Justine’s  plant shop has 7 shelves.  Each shelf holds 18 plants. Suppose  she adds 2 more  shelves to the shop.  Write and solve equations to find the number of plants all  of the shelves can hold.

162 plants