Exponents
4.95 x 104 =
Move decimal right
49,500
The cafeteria in Cherokee Elementary School is 9,653.41 square feet. Mr. Hill's class plans to use 782.91 square feet for their graduation party at the end of the year.
How many square feet of space are left?
Use Subtraction
8,870.50
6.89/103 =
6.89 divided by 10 to the third power
move decimal left
.00689
4/5 x 7/8 =, solve and simplify.
28/40
7/10
(Number of days in a full week) x (number of states)
7 x 50
350
9.07 x 106 =
Move decimal right
9,070,000
Ms. Perkins only has 7 3/5 cups of flour left. She needs to use 4 2/3 for the cookies she is making for Homecoming. How much will she have left over after she makes the cookies?
You should subtract, find a common denominator, and borrow from the whole number to get an improper fraction you can subtract.
7 3/5 - 4 2/3 - common denominator = 15
6 24/15 - 4 10/15
2 14/15
475 + 968 + 327 =
1,770
1 1/2 + 2/3 =
Find common denominator, convert fractions, then solve.
2 1/6
(Number of 5th grade teachers at Cherokee Elementary School) x (Number of people in this room)
Answers will vary and should include any adults and students in the room at the time the category is chosen.
What is the total number of zeros in the standard form of 7 x 1091 ?
DO NOT OVER THINK THIS
91
Mr. Smith placed a pizza order for Cherokee Elementary School. He ordered 1/5 are cheese, 1/3 sausage, and the rest were pepperoni. What fraction of the pizzas ordered are pepperoni?
1/5 + 1/3
3/15 + 5/15 = 8/15
15/15 - 8/15 = 7/15 - ANSWER
7 are pepperoni
30,415 - 4,776 =
25, 639
5/6 - 1/4 =
Find a common denominator first, convert the fractions, then solve.
7/12
(Number of days in a year) x (number of planets)
365 x 8
2,920
(6 x 1,000) + (4 x 100) + (2 x 10) + (5 x 1/10) + (8 x 1/1,000)
6,420.508
Coach Dunning bought a new basketball that cost $37.49, 2 footballs that cost $19.23 each, and 6 jump ropes for $5.50 each. What was the total?
$37.49 + ($19.23 x 2) + ($5.50 x 6) =
$37.49 + $38.46 + $33.00 =
$108.95
74.38 - 36.95 =
37.43
3 1/2 x 4 2/3 =
Change to improper fractions first, then solve.
16 1/3
(Number of continents) x (number of minutes in 3 hours) =
7 x 180
1,260
(57 x 103) + (63.89 x 102) - (846-840)2 =
57,000 + 6,389 = 63,389 - (6)2 = 63,389 - 36 = 63,353
Ms. Lee spends 7 hours making chocolate chip Rice Krispie treats. It takes her 1/4 hour to make each pan. When she is finished with all the pans she is going to share them equally among 6 families. How many pans of Rice Krispie does each family receive?
Find the number of pans made first.
7/1 divided by 1/4
7/1 x 4/1 = 28 flip division to multiplication
Divide the number of pans by the number of families to get the final answer.
28/1 divided by 6
28/1 x 1/6 flip division to multiplication
28/6 = 4 4/6 = 4 2/3 convert to mixed number
421 x 206 =
86,726
Ms. Harris bus route to Cherokee Elementary School is 5 1/2 miles. The bus route home is 1 3/5 times as long. How long is Ms. Harris' bus route home?
Simplify the answer
8 8/10
8 4/5
(Number of letters in the alphabet) x (Number of months in 2 years)
26 x 24
624