Section 1.1
Explain how you can use place-value patterns to describe how 30 and 300,000 compare
300,000 is 10,000 times greater than 30
A group of three digits separated by commas in a multidigit number is a ________.
Period
What property is this:
12 + 7 = 7 + 12
12 x 7 = 7 x 12
Commutative Property of Addition/Multiplication
An _______ is the number that tells you how many times a base is used as a factor.
Exponent
The Earth's circumference around the equator is about 25 x 103 miles. What is the Earth's estimated circumference written as a whole number?
A) 250,000
B) 25,000
C) 2,500
D) 250
B
700,000 is _______ times as much as 700.
1,000
What is the value of the 8 in:
6,581,674
80,000
What property is this:
5 + (8 +14) = (5 + 8) + 14
5 x (8 x 14) = (5 x 8) x 14
Associative Property of Addition/Multiplication
Find the value:
6 x 102
600
Find the value
(4 x 3) x 102 = _______
1,200
800 is 10 times as much as ______.
80
What is the value of the 4 in:
34,632,803
4,000,000
What property is this:
5 x (7 + 9) = (5 x 7) + (5 x 9)
Distributive Property
Find the value:
(3 x 4) x 103
12,000
Use mental math to complete the pattern
5 x 4 = _______
(5 x 4) x _______ = 200
(5 x 4) x _______ = 2,000
(5 x 4) x _______ = 20,000
10
100
1,000
10,000
7 is 1/10 of _______.
70
Rewrite this number in WORD form:
125,567,900
one hundred twenty-five million five hundred sixty-sever thousand and nine hundred
Complete the equation, and tell which property you used.
34 + ____ = 34
34 + 0 = 34
Identity Property of Addition
Angela wrote the highest score she made on her new video game as the product of 70 x 6,000. What was her score?
A) 420
B) 4,200
C) 42,000
D) 420,000
D
Use mental math to complete the pattern
3 x 7 = _______
(3 x 7) x 101 = _______
(3 x 7) x 102 = _______
(3 x 7) x 103 = _______
21
210
2,100
21,000
6,000 is 1/10 of _______.
60,000
Rewrite this in EXPANDED form:
seven million, twenty thousand four, thirty two
(7 x 1,000,000) + (2 x 10,000) + (4 x 1,000) + (3 x 10) + (2 x 1)
7,000,000 + 20,000 + 4,000 + 30 + 2
Fishing boats rent for $33 per day. Which expression can be used to find the cost in dollars of renting 8 fishing boats for a day?
A) (8 + 30) + (8 + 3)
B) (8 x 30) x (8 x 3)
C) (8 x 30) + (8 x 3)
D) (8 + 30) x (8 + 3)
C
The soccer field at Bellson's school has an area of 6,000 sq meters. How can Bellson show the area as a whole number multiplied by a power of ten?
A) 6 x 104 sq m
B) 6 x 103 sq m
C) 6 x 102 sq m
D) 6 x 101 sq m
B
Rewrite as a product of ten
90 x 800
72 x 103