Multiples of 10, 100, & 1,000
Box Method (Partial Product)
Multiply with Regrouping
Multiply by a Multi-Digit Number
Exact or Estimate
100
3 X 10 =
30
100

56 x 7 = 

392

100
54 x 3 =
162
100

5 x 78

390

100

The art teacher order 201 sets of markers for her classroom. Each set has 8 markers. How many markers did she order in all?

1,608 markers

200

9 X 100 =

900

200
303 x 3 =
909
200
132 x 4 =
528
200
460 x 7 =
3,220
200

Nicole has four decks of 52 cards in each deck. About how many cards does Nicole have?

Nicole will have about 200 cards.

300
5 X 500 =
2,500
300
507 x 6 =
3,042
300
365 x 9 =
3,285
300

745 x 7

5,215

300

Hannah uses 1,021 minutes on her cell phone each month. How many minutes will she use in three months?

Hannah will use 3,063 minutes in three months.

400

2,000 x 4

8,000

400

9,002 x 9 =

81,018

400
2,196 x 2 =
4,392
400

1,054 x 5 

5,270

400

A concert hall seats 7,689 people. There were 8 concerts in June and a ticket was sold for every seat. How many tickets were sold in June?

61,512 tickets

500

6,000 x 5 =

30,000

500

1,927 x 3 = 

5,781

500
9 x 9,927
89,343
500

3,099 x 7

21,693

500

A plane carries 278 passengers. If the plane makes 5 trips, about how many passengers did they carry?

about 1,500 passengers 

M
e
n
u