Multiplying by 1 digit
(Topic 3 review)
Estimating Products
Use Partial Products To Multiply
Use the Standard Algorithm to Multiply
100

13 x 3 =

39

100

64 x 13

600

100

14 x 21

294

100

14 x 12 =

168

100

There are 27 students in Ms. Langley's class. Each student is assigned 15 different math problems. How many math problems are assigned to the whole class?

405 Math Problems/Problems

200

88 x 5 =

440

200

82 x 36

3,200

200

18 x 18 =

324

200

15 x 13 =

195

200

A roller coaster runs 80 times during the day. It can hold 32 people at a time. How many people rode on the roller coaster?

2,560 people

300

159 x 5 =

795

300

34 x 48

1,500

300

41 x 12

492

300

51 x 12

612

300
A cruise ship is 14 story tall. Each story is 12 feet. How tall is the ship?

168 feet

400

5,835 x 7

40,485

400

88 x 23

1,800

400

38 x 27

1,026

400

73 x 13

949

400

A pine tree can produce 78 pinecones. Each pinecone can have 42 seed. How many seeds are produced by the pine tree?

3,276 seeds

500

7,856 x 8

62,848

500

64 x 76 =

4,800

500

73 x 47

3,431

500

29 x 64

1,856

500

A football stadium has 72 rows. Each row has 55 seats. How many seats are at the football stadium?

3,960 seats

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