Multiplying Decimals
What is the value of 0.5 X 10?
5
What is the value of 2 / 0.2?
10
What is place value?
the value assigned to be digit based on its position in a number.
A beaker if filled with 0.23 liter of water. Leon fills another beaker with 3 times as much water. How much water is in Leon’s beaker?
0.69 liter
Compare the numbers 5.0 and 0.5. How many times 0.5 is 5.0? Use the place value to explain how you know.
10 times as much. A digit in the ones place has ten times the value of what it would have in the place to its right.
What is the value of 0.056 X 100?
5.6
What is the value of 5.2 / 100?
0.052
What is base ten?
the value of each place is 10 times the value of the place to the right.
Every day on his way to and from school, Milo walks 3.65 miles. If he walks to school 5 days, how many miles will Milo have walked?
18.25
Think about everyday places or situations where people might need to divide decimals.
Answers can be but not limited to: dividing money to the cost of an item between a group of people, calculating discounts or taxes, recipes that require dividing quantities, calculating miles per gallon (driving, or so on.
What is the value of 1.2 X 1.4?
What is value of 75.25 / 100
0.7525
What is Expanded form?
the way a number is written to show the place value of each digit.
A bag of oranges costs $7.65. Five friends want to share the bag. If each friend pays the same amount, how much will each friend pay?
$1.53
Padma bought 3 pounds of grapes. Each pound of grapes costs $2.75. How much money did Padma spend on grapes?
$8.25
What is the value of 4 X 5 X 0.5?
10
What is value of 1.20 / 0.08?
15
What is a decimal?
A number containing a decimal point that separates a whole from fractional place values.
Mr. Jefferson gives his two children $5.46 to spend at a garage sale. If they split the money evenly, how much will each child have to spend?
$2.73
How much will each person receive if $20.35 is split equally among 5 people?
$4.07
What is the value of 25.65 X 15.20?
389.88
What is value of 6.5 / 0.5?
13
What is inverse operation?
operations that undo the effect of each other.
Fabric costs $11.99 a yard. Leo buys 4 yards of red fabric and 3 yards of blue fabric. How much does Leo spend on fabric?
$83.93
Reveal situations in which decimals are multiplied in the real-world.
Answers listed but not limited to:
Weighing fruits, meat, deli items, and other produces.
Finding the area of a room in feet or yards.
cooking measuring, construction or tailoring measurements.
Time and distance ex: 1.5 - hour and 30 minutes
1 gallon per 2 miles
money