Decimals
Compare the following decimal numbers. Which of theses symbols should you use >, <, =?
157.78 _____ 157.6
157.78 > 157.6
Find the sum of the following numbers:
120, 543 and 64, 345
184,888
The City Library is hoping to collect
5,000 books in their weekend book
drive to donate to a charity. If they
collect 1,846 books in the first
weekend, how many more books do
they need to collect over the next
few weekends? Justify your answer.
They need to collect
3,154 more books.
Your family is having a dinner party and you need to figure out how much the food will cost altogether. Here are their orders:
-6 people want pizza ($9.50/pizza)
-5 people want hotdogs ($2.15/hotdog)
-3 people want nachos ($3.96/nacho)
$79.63
A single pencil costs $0.50. A pack of 5 costs $2.00.
How much do you save by buying the pack of 5?
You save $0.50 buying the pack of 5 pencils.
Order the following numbers from least to greatest.
20.43, 12.13, 101.5, 12.67, 20.3,
12.13, 12.67, 20.3, 20.43, 101.5
Find the sum of the following numbers:
354, 777 and 987, 566
1,342,343
Mei and Lee are counting their toys. They have 22
action figures, 16 stuffed animals and 17 other toys.
To solve their problem,
Lee writes: 17 + 16 + 22
Mei writes: 22 + 16 + 17
Will they both get the same answer?Justify your
response.
Yes, the order in which you
add numbers doesn’t matter
the sum will always be the
same. (commutative property)
Here is the price list for food at the fair:
Cotton Candy - $3.14
Popcorn - $5.34
Milkshake - $6.57
Pizza Slice - $9.61
Funnel Cake - $6.87
Pretzel - $4.08
How much would it cost to buy a slice of pizza, a milkshake and a funnel cake?
$23.05
$250 for 4 video games = _______________ for 1 video game
$62.50
Find the total of the following numbers: 34.50 + 18.90
53.40
Find the difference of the following numbers:
54,923 and 23,408
31,515
Mrs. Potts is in charge of measuring the long jump event on Track and Field Day.
Paul jumped 2562mm. WuShen jumped 278mm more than Paul. If David jumped
127mm less than WuShen. How far did David jump?
David jumped 2 713mm in the long jump event.
Here is the price list for food at the fair:
Cotton Candy - $3.14
Popcorn - $5.34
Milkshake - $6.57
Pizza Slice - $9.61
Funnel Cake - $6.87
Pretzel - $4.08
How much would it cost to buy 3 pretzels, popcorn and cotton candy?
$20.72
Store A sells 3 chocolate bars for $3.75. Store B sells 5 chocolate bars for
$9.75. Which store has the better deal? Explain. Show your work.
Store A: $3.75/3 chocolate bars = $1.25/chocolate bar
Store B: $9.75/5 chocolate bars = $1.95/chocolate bar
Therefore Store A is the better deal.
Find the total of the following numbers: 200.55 + 202.78
403.33
Find the difference of the following numbers:
62,461 and 35,247
27,214
Mr. Truvit’s class is selling raffle tickets to win an
IPad. They sold 5464 tickets in the first month. If
they sold double the first months amount during
the second month. How many tickets did they
sell in two months? Justify their answer.
They sold 16 392 tickets in two
months.
(24 + 24) = (N + 40)
N=8
Cayden can purchase an annual subscription of a movie every month
for $30. Or he can pay each movie individually for $2.85. Which is the
better deal? Explain. How much more do you save per movie? Show
your work.
Subscription: $30/12 movies = $2.50/movie
Individual: $2.85/movie
Difference: $2.85 − $2.50 = $0.35
Therefore, it is a better to get the subscription because you save $0.35/movie.
Find the difference of the following numbers:
878.34 and 643.86
234.48
Find the difference of the following numbers:
76,058 and 10,362
65,696
Steven bought two boxes of erasers.
One box had 24 erasers in it. The
other box had 36 erasers in it. He
then gave 18 of his erasers to his
friend. How many erasers did Steven
have left?
Steven had 42 erasers left.
(18 + 13) < (N + 46)
N<0
Kaydee goes to the grocery store and sees a 4 kg bag of sugar for $4.99
and another 3 kg of sugar for $3.50. Which bag is the better deal?
Explain. Show your work.
First bag: $4.99/4 kg = $1.25/kg
Second bag: $3.50/3 kg = $1.17/kg
Therefore the 3 kg for $3.50 is the better deal.