Mult. by Powers of 10
85 x 100
8,500
51 x 10
500
71 x 10
710
Select all of the expressions that are equal to 730,000
A. 73 x 10^3
B. 73 x 10^4
C. 73 x 10^5
D. 10,000 x 73
E. 100,000 X 73
B and D
Brad lives 12 times as far away from the ocean as Jennie. If Jennie lives 48 miles from the ocean, how many miles from the ocean does Brad live?
576 Miles
16 x 10^2
1,600
300 x 118
30,000
81 x 11
891
An apartment building has 25 apartments. The floor area of each apartment is 685 square feet. WRITE AND EQUATION for f. You do not need to solve.
F= 685 x 25
A hardware store ordered 13 packs of Nails. Each pack contains 155 nails. How many total nails did the store order?
2,015 nails
38 x 10^3
38,000
598 x 42
24,000
106 x 7
742
Write yes or no to tell if the number 10^3 will make each equation true.
17 x ___ = 170
5 x ____= 5,000
30 x ____=300,000
222 x _____=222,000
No
Yes
No
Yes
A stadium has 7,525 seats. What is the total attendance for 5 games if each game is sold out?
37,625 people
52 x 10^5
5,200,000
408 x 676
280,000
439 x 22
9,658
Fill in the table to match each number with an expression.
A.35 x 10^0. B. 35 x 100 C.35 x 10^3
D. 35 x 10^1
35-
350-
35,000-
3,500-
35- 35 x 10^0
350- 35 x 10^1
35,000- 35 x 10^3
3,500- 35 x 1000
A stadium has 58 sections of seats. There are 288 seats in each section. Mary estimated the total number of seats by multiplying 60 x 300. She concluded that the stadium has fewer than 18,000 seats. Does her conclusion make sense? Explain?
250 x 10^0
250
854 x 733
630,000
1,134 x 55
62,370
A hotel has a budget of $16,000 to buy 83 new mattresses. Each mattress costs $209. The hotel manager says, "Since 80 x $200 = $16,000, I can stay within the budget." Do you agree with the hotel manager?
No the hotel manager estimates both numbers down so it is an underestimate. 83 x 209 = 17,347.
Mrs. Kemper needs to order picture frames for her paintings She has $4,000 dollars to buy 103 frames each priced at $42. Mrs. Kemper says she has enough money because 100 x $40 = $4,000.
Her reasoning does not make sense. She found an underestimate. The picture frames will cost more than $4,000.