Multiples of 10s, 100s, and 1,000s
What is
7 × 10=
7 x 100=
7 x 1,000=
70
700
7,000
A teacher arranges 5 rows of 6 chairs. How many chairs are there in all?
30
Draw an area model to solve 12 × 3. What is the product?
36
A box holds 23 markers. If there are 3 boxes, how many markers are there in total? Use partial products to solve.
69
A pack of stickers has 40 stickers. If Mia buys 3 packs, how many stickers does she have in all?
120
What is
46 x 10=
46 x 100=
46 x 1,000=
460
4,600
46,000
An array has 8 rows of 9 apples. Write the multiplication sentence and find the total number of apples.
8 x 9= 72
Use an area model to solve 23 × 4 by breaking apart the number.
92
Each pack of pencils has 42 pencils. A teacher buys 6 packs. Use partial products to solve 42 × 6 to find how many pencils she has.
252
There are 4 rows of chairs in the music room. Each row has 12 chairs. How many chairs are in the music room?
48
Item: Price each: Packs of 10: Packs of 100:
Erasers $1 ? ?
notebooks $3 ? ?
10 and 100
30 and 300
Draw an array to show 3 × 4. How many total dots are there?
12 dots
A soccer stadium has 46 seats in each row. There are 27 rows in total. Use an area model to multiply 46 × 27 to find how many seats the stadium has.
1,242
A library has 136 shelves. Each shelf holds 48 books. Use partial products to solve 136 × 48 to find how many books the library can hold in total.
6,528
A farmer has 36 baskets. Each basket holds 25 apples. How many apples does the farmer have in total?
900
A library orders 245 new books. Each box holds 100 books. How many boxes does the library need for all the books?
24,500
A farmer planted 5 rows and 7 columns of crops. If 3 rows died from a crow attack, how many crops survived?
14 crops
A toy factory makes 128 toy cars every day. If the factory works for 24 days, use an area model to multiply 128 × 24 to find how many toy cars the factory made.
3,072
A gardener plants 58 flowers in each row. There are 27 rows in the garden. Use partial products to solve 58 × 27 to find how many flowers are planted.
1,566
Select all of the expressions that have a product of 864.
A.) (8 × 100) + (6 × 4)
B.) 9 × 96
C.) (12 × 6) × 12
D.) 108 × 6
B and C
If Steve solves 4x110= and he gets 550 as his product. What is his mistake? What is the correct answer?
4 x 11 is not 55. The correct answer would be 440.
Select 2 expressions that show how to solve 2x23=
A. (2 x 20) + (2x3)
B. 2 x 5
C.
***********************
***********************
D. (1x23) x (1x23)
A and C
A school cafeteria makes trays of muffins each week. Each tray can hold 12 muffins and each day they make 5 trays. How many muffins do they make a day? How many muffins would they make over a 2 week period?
60 muffins a day.
840 over a 2 week period
Ice cream sales per day:
Vanilla: $45
Chocolate: $56
Mint and chip: ?
Cookie dough: $42
If this is over a 5 day period, how much money would Chocolate earn?
$280
A store sells a 65-inch TV for $899 and a 50-inch TV for $459.
If on Monday the store sells 3 of the 65-inch TVs and 4 of the 50-inch TVs, how much money does the store earn on Monday?
Show how you solved the problem and explain why your answer makes sense.
$4,533