Estimation Category
Multiplication
Division
Perimeter and Area
Fractions/Decimals
100
Ms. Matlock had 487 erasers. Mr. Shankle had 725 erasers. About how many erasers did they have altogether?
What is about 1,200 erasers 700 + 500 = 1,200
100
9 x 36 = ?
What is 324
100
132/6 =
What is 22
100
A rectangular pig pen has a length of 3 m and a width of 7 m. What is the perimeter?
What is 20 m
100
Write 2/5 as a decimal.
What is 0.4
200
There are 68 students in fourth grade. Each student earned 59 tickets. About how many tickets were earned altogether?
What is about 4,200 tickets 70 x 60 = 4,200
200
279 x 4 = ?
What is 1,116
200
89/5 =
What is 17r4
200
A pentagon has 5 sides that measure 73 cm. What is the perimeter?
What is 365 cm
200
Write 6/25 as a decimal.
What is 0.24
300
A puppy sleeps an average of 18 hours per day. About how many hours does a puppy sleep in 5 weeks?
What is about 700 hours 20 x 7 x 5 = 700
300
Mrs. Wilson loves collecting antique coins. She has 60 coins. If she can sell each coin for $96, how much money will she make?
What is $5,760
300
302/8 =
What is 37r6
300
The side of a square is 68 cm. What is the perimeter?
What is 272 cm
300
Isaiah hit 20 out of 25 baseballs at the batting cages. What fraction of the baseballs did he hit? At this rate, how many baseballs would he hit if there were 100 shots?
What is Fraction = 20/25 or 4/5 or 80/100 He would make 80 out of 100 shots at this rate.
400
A T-rex eat 65 pterodactyl eggs a day. How many pterodactyl eggs does it eat in one month?
What is about 1,960 pterodactyl eggs 70 x 7 x 4=1,960
400
Miss Daly wants to buy a new car and pay for it in 2 years. Emich offers two plans, and she wants to choose the cheaper one. Plan A: $12 each week, 104 payments in all Plan B: $51 each month, 24 payments in all
What is Plan B will cost less Plan A - $1,248 Plan B - $1,224
400
4,329/3 =
What is 1,443
400
Miss Daly has decided to remodel her kitchen. The room is 9 feet by 13 feet long. How many 1-square-foot tiles does she need to re-tile her floor?
What is 117 tiles 9 x 13 = 117
400
Josh set a goal of swimming 100 miles this summer. In the first two weeks, he swam 25 miles. What fraction of 100 miles did he swim in 2 weeks? At this rate, how many weeks will it take him to swim 100 miles?
What is Fraction = 25/100 It will take him 8 weeks to swim 100 miles.
500
There are 6,096 fans at a baseball game. Each fan plans to order 9 hot-dogs. About how many hot dogs should the stadium prepare for the day? About how many hot dogs should the stadium prepare for the week?
What is 54,000 hot dogs for the day and 378,000 for the week 9 x 6,000 = 54,000 54,000 x 7 = 378,000
500
Mrs. Fry wants to buy a new car. She is not sure what dealership to buy it from. She wants to spend the least amount of money possible. She has done her research and comes up with the following options: Dealership A: $190 a month for 36 months Dealership B: $120 a month for 60 months The better deal is...
What is Dealership A Dealership B has lower payments, but equals $7,200. Dealership A has higher payments, but only costs $6,240.
500
For a bake sale, John baked 3,927 chocolate chip cookies. He put the cookies onto plates for the sale. Each plate holds 8 cookies. John will need _______ plates.
What is 491
500
Mark is buying new carpet for his house. There are five rooms that need carpet. Each room measures 12 ft by 16 feet. How many square feet of carpet does Mark need to buy?
What is 960 square feet 12 x 16 = 192 square feet 192 x 5 = 960
500
Ms. Kardok bought 1/4 of the school candy for perfect attendance. If there are 648 scholars at Wyatt, how much candy did she buy? Also, convert 1/4 to a decimal.
What is 162 pieces of candy. 1/4 = 0.25
M
e
n
u