Powers of 10
What is 36 × 10?
360
Estimate 39 × 5 by rounding 39 to the nearest ten.
200
What is 24 × 3?
72
What is 12 × 11?
132
There are 6 bags with 8 apples in each. How many apples are there?
48 apples
What is 54 × 100?
5,400
Estimate 62 × 8 by rounding 62 to the nearest ten.
480
What is 46 × 5?
230
What is 24 × 13?
312
A classroom has 24 desks. Each desk has 4 legs. How many legs are there?
96 legs
What is 270 × 1,000?
270,000
Estimate 48 × 21 by rounding both factors to the nearest ten.
1,000
What is 128 × 4?
512
What is 136 × 12?
1,632
A theater has 18 rows with 25 seats in each row. How many seats are there?
450 seats
What is 48 × 100?
4,800
Estimate 294 × 38 by rounding each factor to its greatest place.
12,000
What is 307 × 6?
1,842
What is 245 × 23?
5,635
A school buys 36 boxes of pencils. Each box contains 125 pencils. How many pencils are purchased?
4,500 pencils
A number multiplied by 100 equals 63,000. What is the number?
630
A school orders 47 boxes with 198 pencils in each. Estimate the total pencils.
10,000 pencils
What is 2,468 × 7?
17,276
What is 374 × 46?
17,204
A library has 24 shelves with 36 books on each shelf. It receives 175 more books. How many books does it have altogether?
1,039 books