Damon ch 1 Vocab
Definition: A special set of rules which gives the order in which calculations are done in an expression
Is this Order of Operations or Inverse Operations?
Order of Operations: A special set of rules which gives the order in which calculations are done in an expression
Is this the Identity Property of Addition, or the Associative Property of Multiplication?
The property that states that when you add zero to a number, the result is that number
Example: 17 + 0 = 17
The Identity Property of Addition states that when you add zero to a number, the result is that number.
An hour has _________ minutes.
An hour has 60 minutes.
A half hour has _______ minutes.
30 minutes OR 15 minutes?
A half hour has 30 minutes.
Using rods and ones, tell us how many 10 rods and how many 1s cubes = 11
1 ten rod plus 1 ones cube = 11
11 = 1 group of 10s and 1 one
A number that shows how many times the base is used as a factor
Is this an exponent or a base?
Example: 103=10 × 10 × 10
An exponent is a number that shows how many times the base is used as a factor
To replace a number with another number that tells about how many or how much is an example of ROUNDING or PATTERN?
Example:
42 + 16
40 + 20
ROUND: to replace a number with another number that tells about how many or how much
A half hour has _______ minutes.
A half hour has 30 minutes
Does one hour have 60 minutes or 30 minutes?
One hour is 60 minutes.
1 ten rod plus 3 ones cubes = 13
13 is one group of 10 plus three ones
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Is this an example of the Distributive Property or the Identity Property of Multiplication?
Example: 3 × (4 + 2) = (3 × 4) + (3 × 2) (3 × 6) = 12 + 6
18 = 18
© Houghton Mifflin Harcourt Publishing Company
The Distributive Property is the property which states that multiplying a sum by a number is the same as multiplying each addend in the sum by the number and then adding the products
Example: 3 × (4 + 2) = (3 × 4) + (3 × 2) (3 × 6) = 12 + 6
18 = 18
Is the answer to a subtraction problem the difference or the sum?
The answer to a subtraction problem is the difference.
Example: 6 - 4 = 2
The difference is 2.
A quarter hour has _______ minutes.
Is the answer 30 or 15?
A quarter hour has 15 minutes.
How long is one quarter hour, 15 minutes or 60 minutes?
One quarter hour has 15 minutes.
10, 20, 30, 40, 50
Is the equation 72 + 0 = 72 an example of the Identify Property of Addition, or the Communicative Property of Addition?
The identity property of addition says that the sum of 0 and any number is that number.
An ordered set of numbers or objects in which the order helps you predict what will come next is an example of PATTERN or ASSOCIATIVE PROPERTY?
example: 2, 4, 6, 8
A PATTERN is an ordered set of numbers or objects in which the order helps you predict what will come next.
Is the "minute hand" the longest or shortest?
The minute hand is the longest.
Is the hour hand the longer or shorter hand?
Count by 10s to 100
10, 20, 30, 40, 50, 60, 70, 80, 90, 100
Is this equation an example of the communicative property of multiplication, or the associative property of multiplication? Why?
11 x (4 x 6) = (11 x 4) x 6
The associative property is a math rule that says that the way in which factors are grouped in a multiplication problem does not change the product.
What related number sentence shows the Cummutative Property of Addition?
3+9=12
These two number sentences show the Cummutative Property of Addition:
3 + 9 = 12
9 + 3 = 12
If the minute hand is on the 3, 6, 9, or 12 is it pointing to the quarter hour or the half hour?
If the minute hand is on the 3, 6, 9, or 12 is it pointing to the quarter hour.
10:30
Is this a half hour after ten, or a quarter hour after ten?
10:30 is a half hour, or 30 minutes, after 10.
Using rods and cubes, show us a representation of 20
20 is two ten rods (counting by 10s: 10, 20)