True/False
When adding and subtracting decimals, you always line up the decimal point.
True
14.73 + 15.1=
29.83
20.8 - 7.34=
13.46
8.76 x 2.9=
25.404
Which ocean is off the California coast?
The Pacific Ocean
When adding and subtracting decimals, you put the number with the greatest value on the bottom.
False
24 + 18.36
42.36
15 - 0.48=
14.52
10.38 x 6.4=
66.432
What is the National Anthem of the USA called?
What is the Star Spangled Banner?
When multiplying decimals, the amount of decimal places in your factors determines how many decimal places will be in your product.
True
A CD is $14.99, a notebook is $5.99, a wallet is $6.99, a pack of pens is $2.99, and a pack of gum is $1.20.
Jack has $25.00.
If he wants to save $10 for dinner, which 3 items could he buy?
Option 1: A wallet, a pack of pens and a pack of gum.
Option 2: A notebook, a pack of pens and a pack of gum.
At full price, Melvin would pay 1.679 dollars per liter of gasoline. Using his loyalty card, Melvin only pays 1.439 dollars per liter.
How much less does Melvin pay per liter using his loyalty card?
$0.24
Josh is purchasing 5 binders for school that cost $1.12 each. Plus sales tax on his entire purchase that totals $0.45. What is the total of his purchase?
$6.05
On the farm, what is a kid?
A baby goat
When adding and subtracting decimals, you always put the number with more digits on top.
False
Bill is making homemade pizza. He has $5.65. Pepperonis are on sale for 2 packs for $1.33. How many packs can Bill buy?
8 packs
The chef took out 54.8 g of butter but then found out that he took out 6.9 g of butter more than he need.
How much butter did he need?
He needed 47.9 grams of butter.
What is the fewest digits that must appear after the decimal point in each product. Match the letter with the number.
A. 0.71 x 0.5 1. 1 digit after the decimal point
B. 23.9 x 12 2. 2 digits after the decimal point
C. 0.09 x 6 3. 3 digits after the decimal point
A and 3
B and 1
C and 2
What is the Maryland state bird?
What is the Baltimore Oriole?
When adding and subtracting decimals, you count how many numbers are behind the decimals in the problem and put the same number of decimal places in your answer.
False! That's for multiplying!
Color chemicals are mixed with wax to give crayons their color. During a day of production, one machine produced 42.5 ounces of color, and a second machine produced 57.92 ounces of the same color.
How many total ounces of color did the two machines produce?
100.42 ounces
Kendra is going to the movie theater. She has $40 in cash to buy tickets. If she buys 3 tickets for $8.25 each, how much money will she have left?
$15.25
If 2 dozen eggs cost $2.18, how much does 5 dozen eggs cost?
$5.45
If you suffer from arachnophobia, which animal are you scared of?
Spiders