Multiply Decimals
What is 198.2 x 0.03
5.946
What is 12.05 / 5 ?
2.41
What is 105.6 / 0.2 ?
528
0.003 x 104
30
What property does 9 x ( 8 x 2 ) = ( 9 x 8 ) x 2 represent?
The Associative Property
I bought 4 basketballs for $19.99 each. How much did I spend in total?
I spent $79.96
4 people split a check at a restaurant that was $64.96. How much did each person spend if the check was split evenly?
Each person spent $16.24
3,182,075
Jeremy went to buy a christmas tree. Every christmas tree was $33.50. He decided to buy 10 trees. How much did he spend?
He spent $335.00
What property does 3 x 4 = 4 x 3 represent?
The Commutative Property
50.8235
I decided to divide 9,874.35 by 3. What did I get for an answer?
I got 3,291.45
What is the rule when dividing decimals by decimals?
The rules is that you have to move the decimal on the outside (the divisor) however many places it takes to make it a whole number. Then, you have to move it the same amount of places in the number in the inside (the dividend). Once it is moved, you may divide like normal.
I spent $475 on concert tickets. I bought 10 tickets. How much was each ticket?
Each ticket was $47.50
What property does 300 x 1 = 300 represent?
The Identity Property
Strawberries are $3.95 a pound and bananas are $2.45 a pound. Jim bought 3.5 pounds of strawberries and 2.8 pounds of bananas. How much did Jim spend in total?
Devin spent $465.80 on tickets to a basketball game. She is going with 3 other people. They split the cost evenly. How much did each person pay for a ticket?
I have 12.75 cups of flour. A recipe calls for 1.5 cups of flour. How many full batches of that recipe can I make?
I can make 8.5 batches. So I can only make 8 full batches.
9.756 / 102 / 1,000
0.00009756
How can you tell the difference between the Commutative Property and the Associative Property?
The Associative Property has groupings. We are regrouping the numbers to multiply or add. The Commutative Property we are flip flopping the order in which the numbers are being multiplied or added.
Steak cost $9.75 a pound and chicken costs $7.50 a pound. Kelly bought 5 pounds of steak and 3.5 pounds of chicken. How much more did Kelly spend on steak than on chicken?
Kelly spent $22.50 more on steak
Each person ended up paying $345.11
On a road trip, Mary has to fill up the gas tank 2.5 times. She drove 900 miles. How many miles can she go between filling up?
360 miles
What is 453.092 x 100 x 105
4,530,920,000
Is the following statement true or false? Explain.
( 4 x 13.4 ) + 19 = 4 x ( 13.4 + 19 )
False because the Associative Property can only be one operation. Only addition or only multiplication, not both!