Multiplying Greater Numbers by Powers of 10
Multiply: 437 × 10
4,370
Estimate the product: 42 × 19
About 800 (40 x 20)
Multiply: 123 × 10
1,230
A concert hall has 125 rows of seats. Each row has 24 seats. How many seats are there in total?
3,000 seats
A farmer plants 125 trees in each field. If there are 12 fields, how many trees will there be in all? Write the equation and solve.
125 × 12 = 1,500 trees
2,615 × 100
261,500
Estimate: 87 × 6
About 540 (90 x 6)
Multiply: 205 × 12
2,460
A bakery makes 136 cookies each day. How many cookies does it bake in 15 days?
2,040 cookies
A bookstore sells 214 books each week. How many books are sold in 13 weeks? Write the equation and solve.
214 × 13 = 2,782 books
What is 73,290 × 1,000?
73,290,000
Estimate the product: 123 × 49
About 6,000 (120 x 50)
Multiply: 314 × 21
6,594
A school orders 213 pencils for each of its 18 classrooms. How many pencils are ordered in total?
3,834 pencils
A toy factory produces 356 toys per day. How many toys will it produce in 24 days? Write the equation and solve.
356 × 24 = 8,544 toys
If you multiply 8,521 by 100,000, how many zeros will the product have at the end?
Five zeros; 852,100,000
You buy 38 notebooks that each cost $12. Estimate the total cost.
About $480 (40 × 12 = 480)
Multiply: 428 × 36
15,408
A factory produces 347 cans of soup each hour. How many cans are made in 26 hours?
9,022 cans of soup
A shipping company delivers 478 boxes per truck. If they use 32 trucks, how many boxes are delivered? Write the equation and solve.
478 × 32 = 15,296 boxes
Multiply 9,476 x 10³. What is the answer and what does 10³ mean?
9,476,000 and 10³ means 1,000 (10 × 10 × 10)
A factory makes 248 toys each day. Estimate how many toys are made in 29 days.
About 7,000 toys (250 × 30 = 7,500)
Multiply: 729 × 48
34,992
A library has 128 shelves. Each shelf holds 47 books. How many books are in the library?
6,016 books
A stadium has 146 rows with 29 seats in each row. How many seats are there? Write the equation and solve.
146 × 29 = 4,234 seats