Math Unit 1 Review

Multiplication Estimation

100

Estimate 391 X 5=

400 X 5= 2,000

200

Estimate 240 X 9= 

200 X 9= 1,800

300

Estimate 7 X 4,100=

7 X 4,000= 28,000

400

Estimate 543 X 6= 

500 X 6= 2,000

500

Estimate 5 X 1,500=

5 X 2,000= 10,000

Division Estimation

100

Estimate 7049/68=

7000/70=100

200

Estimate 119/23

100/20=5

300

Estimate 214/49

200/50=4

400

Estimate 423/26

400/20=20

500

Estimate 403 / 67=

420 / 70= 6

Multiplication

100

321 X 74=

23,754

200

865 X 41=

35,465

300

230 X 50= 

11,500

400

568 X 76=

43,168

500

418 X 83=

34,694

Division

100

960 / 10=

96

200

924/11=

84

300

735/21

35

400

780/15

52

500

588/28

21

Mystery

100

Buzz flew 230 miles every day for 19 days. About, how many miles did Buzz fly?

200 X 20= 4,000

200

Andy baked 3,036 cookies and wants to put a dozen in each package. How many packages will Andy have? 

253

300

                                                                       

A company makes 5,460 pencils each day. The pencils are packaged in groups of 12. How many packages of pencils does the company produce in 54 days?

                                                       

    

24,570

400

                                                                       

The Rapid Transit train car can seat a maximum of 96 passengers. In 2011, the Rapid Transit fleet consisted of 163 train cars. If every seat of each train in the Rapid Transit fleet was filled, what is the maximum number of seated passengers the Rapid Transit trains could transport at one time?

                                                       

    

15,648

500

There are 365 days in a year and 24 hours in a day. How many hours are there in 3 years?

26,280