Powers of 10
How many zeros are in 104 ?
Four
What property is this?
30 + 0 = 30
identity of addition
25 x 12 =
300
6 x (14 - 8) + 4
40
Write 420,085 in expanded form
(4 x 100,000) + (2 x 10,000) + (8 x 10) + (5 x 1)
32 x 103 =
32,000
What is this property?
3 x (4 x 2) = (3 x 4) x 2
Associative property of multiplication
231 x 36 =
8,316
12 + 6 x 5 / 3 - 3
19
What is the value of the 4 in
54,630
4,000
What is 1/10 of 6,500?
650
Use the distributive Property to solve
(show your work)
7 x 16 =
(7 x 10) + (7 x 6)
70 + 42
112
Kimberly works for 49 hours this week. If she makes $18 dollars per hour, how much money did she make this week?
$882
84 - (7 + 21 x 2) + 16
51
Write this number in word form
372,904
three hundred seventy two thousand, nine hundred four
9,250 is 1/10 of what number?
92,500
Use the distributive property to solve
168 / 7 =
(7 x 20) + (7 x 4)
7 x 24
24
5,214 x 132
688,248
70 / 7 + 6 x 3 - 5 + (21 - 18 / 3)
38
400 x 7,000 =
2,800,000
Jane has $15,000 in her back account on Monday. Her friend Billy has ten times as much as Jane does in his bank account. How much money does Billy have?
$150,000
36 + 48 + 4
36 + 4 + 48
Darlene can type 125 words per minute. If she types at that rate, how many words will she type in 25 minutes?
3,125 words
James slept for exactly 8 hours each night for two weeks straight. On the 15th night he slept for 6 hours. How many hours did he sleep in all?
(8 x 15) + 6
126 hours
Explain the pattern of zeros in the product when multiplying by powers of 10
When you multiply by a power of 10, the number of zeros in the product will increase as the power increases