Decimals
The Australian Cockroach measures 3.582 centimeters compared to the American Cockroach, which measures 3.576 centimeters. Compare these numbers using >,<, or =.
What is 3.582 > 3.57?
Let n stand for the number. Evaluate each expression for n=4
2 plus 5 times a number
Mr. Martin's Spanish class is 45 minutes long. If it starts at 3:30, what time does it end?
What is 4:15?
During a visit to an orchard, Debbie picked 1/5 of a bag of Gold Delicious apples, 1/5 of a bag of Macintosh apples, and 3/5 of a bag of Cortland apples. How many bags of fruits did Debbie pick in total?
What is 5/5 bags of fruit or 1 bag of fruit?
Mr. Dent had 32 markers in his classroom. He buys new boxes of markers that have 9 markers in each box. Now, he has 86 markers. How many new boxes did he buy?
What is 6?
Daily Double: There are 5 types of grains of sand: course, very course, medium, fine, and very fine. A grain of coarse sand can have a diameter of 0.716 mm.
What three number that are greater than 0.716 mm from least to greatest?
Check student's work.
15 + 24 ÷ (8 - 2) =
What is 19?
Jim’s soccer bag weighs 48 ounces. He removed his cleats and shinguards that weighed a total of 1 pound. How much does his soccer bag weigh now?
What is 32 ounces?
At the beach, Gavin and his sister both built sandcastles and then measured their heights. Gavin's sandcastle was 3 7/8 feet tall and his sister's was 2 3/8 feet tall. How much taller was Gavin's sandcastle than his sister's?
3 + 7/8 - 2 - 3/8
3-2 = 1 and 7/8 - 3/8 = 4/8
Reduce the 4/8 to 1/2
Combine the whole and fraction parts: 1 + 1/2 = 1 1/2
Maxwell bought a new pair of skis for $350. He put $110 down and received a student discount of $30. His mother gave him 1/2 of the balance for his birthday. Which of these expressions could be used to find the amount Maxwell still owes on the skis?
A. 350-110+30/2
B. 350-(110-30)/2
C. [350-(110-30)/2]
D. [350-(110+30)]/2
Bobby is helping buy meats, for grilling, for the school picnic. He bought 10 pounds of sausage at $1.69 per pound, 100 pounds of hamburgers at $1.99 pound, 1,000 pounds of hot dogs at $2.09 per pound, and 100 pounds of chicken at $3.69 per pound. Which of the items he bought cost the most?
What is hot dogs at $2,090?
Do (12 + 6) ÷ 2 and 12 + 6 ÷ 2 have the same answer? Explain why.
No, the answers are different. In the first problem, you add 12 + 6 first. In the second problem, you divide 6 and 2 first.
Mike’s turkey burger recipe calls for 4 pounds of ground turkey. How many ounces of ground turkey should Mike purchase at the local grocery store?
What is 64 ounces?
5/8 of the staff are male. 5/12 of the staff work part-time at the aquarium. What fraction of the staff is female?
1 − 5/8 = 3/8 of the staff are female.
Kristina had $60.33 in her checking account. Then, she spent $12.69 from the account. How much money is left in Kristina's checking account?
What is $47.64?
Dave bought a package of 4 chocolate cookies. Each cookie weighed 0.5 ounces. How much did the 4 cookies weigh all together?
What is 2 pounds?
Evaluate each expression when: x=5
2 (10x) =
x/5 + 4 =
8 + 10x =
100, 5, 58
A binder is 9 inches wide, 12 inches long, and 1.5 inches thick. What is the maximum volume of documents the binder can hold?
9 x 12 x 1.5 = 162
The volume of the documents the binder can hold is 162 cubic inches.
Daily Double: Two kinds of fish can be found in a small tank that is 5 1/7 feet long. The blue fish is 2/15 feet long and the orange fish is 7/10 feet long. How much longer is the orange fish?
7/10 − 2/15 = 17/30
The orange fish is 17/30 feet longer than the blue fish.
Calvin paints pictures and sells them at art shows. He charges $56.25 for a large painting. He charges $25.80 for a small painting. Last month he sold six large paintings and three small paintings. How much did he make in all?
What $414.90?
Johnny weighs 97.356 pounds. Read and write this number using words, decimal notation expanded form, and fractional notation expanded form.
ninety-seven and three hundred fifty-six thousandths
(9 x 10) + (7 x 1) + (3 x 0.1) + (5 x 0.01) + (6 x 0.001)
(9 x 10) + (7 x 1) + (3 x 1/10) + (5 x 1/100) + (6 x 1/1000)
The product of n and 10 increased by 3
7 subtracted by p
Square of x
10n + 3 or 10(n) + 3
7 - p
z2
In a hotel, there is a safe in the closet that is 40 cm wide, 20 cm deep and 30 cm tall. Next to the safe, there’s a drawer with digital lock. The drawer is 30 cm wide, 25 cm deep and 20 cm tall. What is the total volume of space for hotel guests to put their valuables?
40 x 20 x 30 + 30 x 25 x 20 = 24,000 + 15,000 = 39,000 The total volume of space for hotel guests to put their valuables is 39,000 cubic centimeters.
A warehouse has 12 and nine-tenths meters of tape in one area of the building, and eight and three-fifths meters of tape in another part. How much tape does the warehouse have in all?
20 15/10 = 21 5/10 = 21 1/2
The warehouse has 21 and one-half meters of tape in all.
Mrs. Hilt read 21 books. Each book had exactly 2,010 words in it. She sold five of her books for $4.95 each. How many words did Mrs. Hilt read?
The price is extra information. 21 x 2,010 = 42,210 She read 42,210 words.