Use the Commutative Property of Multiplication to find the missing factors:
A. 4 x 6 = 6 x ____ B. ____ x 8 = 8 x 3
A. 4 B. 3
100
Solve for x:
6 * x = 6
x = 1
100
Write the number in standard notation:
(8 x 100) + (4 x 10) + (3 x 1)
843
100
Molly was buying boxes of pencils. The boxes had 30 pencils in them. Molly bought 10 boxes. How many pencils did she buy?
300 pencils
200
What are the dimensions of the array?
XXXXX
XXXXX
XXXXX
XXXXX
4 x 5
Note: Rows x Columns
200
Which of the following is not a property of multiplication?
A. Commutative Property of Multiplication
B. Multiplicative Property of Zero
C. Multiplicative Factor Property
D. Multiplicative Identity Property
C. Multiplicative Factor Property
200
Solve for x:
3x = 0
x = 0
200
Write in expanded notation:
735
(7 x 100) + (3 x 10) + (5 x 1)
200
Pablo filled each shelf with 16 cans of pop. On the first shelf he filled 8 rows. How many cans were in each row?
2 cans.
300
Is the following array a square array or a rectangular array AND how do you know?
XXXX
XXXX
XXXX
It is rectangular because there are a different number of rows and columns.
300
What does the Multiplicative Property of Zero tell us?
Any number times zero equals zero.
300
Solve for x:
(3 * 4) * 6 = 3 * (x * 6)
x = 4
300
Write the following number in standard notation:
(8 x 1,000) + (0 x 100) + (6 x 10) + (4 x 1)
8,064
300
Set up an equation and solve:
Some number times 6 equals 6.
x * 6 = 6
x = 1
400
Draw a square array, write the dimensions, and solve for how many x's there are.
(Answers may vary)
Example:
XX
XX 2 x 2 = 4
400
Which of the following demonstrates the Associative Property of Multiplication? (Hint: has to do with grouping)
A. a + a = b + b B. a * (b * c) = (a * b) * c
C. a * b = b * a D. a * b * c = a * b * c
B. a * (b * c) = (a * b) * c
400
Solve for x:
2
X = 9
x = 3
400
Write the following in expanded notation:
6,039
(6 x 1,000) + (3 x 10) + (9 x 1)
400
Justin has 9 cats. Each cat had to go to the vet and and they charged the same for each pet. If the total vet bill was $900, how much was the cost for each cat?
$100
500
Ms. G. lined up desks in her classroom. She put 7 desks in each row and there were 4 rows. How many desks were there?
4 x 6 = 24 desks
500
What does the Multiplicative Identity Property tell us?
That any number multiplied by 1 stays the same.
(Hint: It keeps the same identity)
500
Set up an equation for the problem where x equals the unknown. Then solve.
Mary spent a total of $12 on nail polish. If each bottle costs $4, how many bottles did she buy?
4x = 12 or 4 * x = 12
x = $3
500
Write in expanded notation:
600,309
(6 x 100,000) + (3 x 100) + (9 x 1)
500
Round to solve with mental math:
Antonio was ordering new computers for his office. The computers cost $989 each and there are 635 employees in the office. About how much money should Antonio put aside for the computers?