Decimal Rule
What is a product? What is a quotient?
The answer to a division problem
Find the product: 4.7 × 6
What is 28.2
1.25 divided by .05 =
The quotient of 1.25 and .05 is 25.
Would You Rather
get paid $8.50 for 1 hour of work
or $4.25 for half an hour?
Explain your reasoning.
$4.25 for half an hour means $4.25 × 2 = $8.50 per hour
So both options pay the same.
Answer: either/both
What is standard algorithm?
When you "stack" your numbers vertically as you would when adding, subtracting, or multiplying whole numbers
Find the product: 48.75 × 12
48.75 × 12 = 585 OR 585.00
4.86 divided by .3 =
The quotient is 16.2.
Would You Rather. share $15.60 equally with 3 friends (4 people total), or split $12.48 with just one friend (2 people total)?
Use your calculations to explain how you know.
Split $12.48 with one friend because you get more ($6.24 is greater than $3.90).
What do you do if there is a remainder when dividing decimals?
You have to add on zero's to finish the problem.
There should be no remainder
Find the product: 0.56 × 15
8.4
9.5 x .03 =
The product of 9.5 and .03 is .285.
Find the price per ticket:
A group of friends spends $75.50 on 4 concert tickets. How much does each ticket cost?
Each ticket costs $18.87
. Would You Ratherbuy a 10-pack of juice boxes for $4.80
or
a 6-pack of juice boxes for $6.99?
Use unit price to justify your choice.
Buy the 10-pack because the unit price is cheaper $0.48 is less than $1.17
How do you multiply decimals?
You multiply the numbers and then you count how many spaces there are to the right of the decimals and count them over to the left in the answer.
A movie theater ticket costs $7.25 per person. If a family of 6 goes to the movies, how much do they spend in total?
They would spend a total of $43.50 to go the movies.
2.05 x 3/4
The product of 2.05 and .75 is 1.5375.
Find the unit price: A grocery store buys 24.75 pounds of rice for 9 large bags. How many pounds of rice are in each bag?
2.75 pounds are in each bag
Would You Rather buy 3 notebooks for $2.75 each
or
2 notebooks for $3.90 each?
Explain how you know.
Buy 2 notebooks for $3.90 each because the total is cheaper ($7.80 vs $8.25)
A school orders 25 new tablets, and each one costs $96.08 with tax included. What is the total cost of the order?
The total cost of the order of 25 tablets is $2,402.
2.5 x 1 and 3/4
The product of 1.75 and 25 is 4.375
A bookstore sells $162.50 worth of books, with each book costing the same amount. If they sold 13 books, how much does each book cost?
Answer: 162.50 ÷ 13 = $12.50 per book
Would you rather buy a 20-piece Chicken McNuggets box for $6.99 or two 10-piece McNuggets for $3.60 each?
Use unit price, quotients, products, and your calculations to explain which deal is better.
It’s better to buy two 10-piece McNuggets for $3.60 each
Total: 20 nuggets for $6.99
Unit price: $6.99 ÷ 20 = $0.35 per nugget
Option 2:
Two 10-piece boxes = 20 nuggets
$3.60 × 2 = $7.20 total
Unit price: $7.20 ÷ 20 = $0.36 per nugget