Operations
What is the answer to an addition problem?
Sum
Finding a close, reasonable answer to a problem, rather than the exact answer.
Estimate
True or False: I don't need to show my work if all of my answers are correct.
False
Predictions, Patterns, ____________, Precision
Properties
Rule: Add 5
In: 7 --> Out: ______
12
What is the answer to a multiplication problem?
A visual display of objects or pictures organized into rows and columns.
Array
How many rows are in this array?
X X X X X X
X X X X X X
X X X X X X
3
Which property of multiplication tells us that any factor multiplied by 0 will result in a product of 0
The Zero Property of Multiplication
Which of the following arrays represent a multiplication square?
a. b.
o o o o o
o o o o o
b.
What do you call a number that is being multiplied?
Factor
A number sentence that does not include an equality sign (<, >, =).
Expression
True or false?
A 2 x 3 array is the same as a 3 x 2 array.
False
Which property of multiplication tells us that any factor multiplied by one will stay the same.
The Identity Property of Multiplication
Write a number sentence to math the array:
O O O O O O
O O O O O O
2 x 7
(7 x 2 is incorrect)
What do you call a number that is being added?
Addend
The break down or to break apart into smaller pieces.
Decompose
X X X = X X X
X X X X X X
Which property do these arrays represent? Write an equation to represent these arrays.
Distributive Property
2 x 3 = (1 x 2) + (2 x 2)
Which property of multiplication tells us that a product will remain the same even if you switch the order of your factors in an expression/equation?
The Commutative Property of Multiplication
Estimate:
143 + 279
420 or 500
What is the answer to a division problem?
Quotient
Equal in value
Equivalent
Write an equation to represent one way you could decompose the following array.
O O O O O O O
O O O O O O O
O O O O O O O
ex:
1 x 7 + 2 x 7
3 x 5 + 2 x 5
Which property of multiplication tells us we can decompose one factor into two or more addends and then find the sum of the resulting products?
Distributive Property
What does this mean?
A = L x W
Area = Length x Width