Roman Numerals
Geometry
Quick calculations
Logic
Multiplication and Division
100
CXVIII
118
100
The square below has an area of 81, and is divided into five identical smaller squares and one larger square. What is the sum of the perimeters of the five smaller squares and one larger square? 
84
The side length of the original square is square root of 81=9 ,therefore the side length of the smaller side is 9 ÷ 3 = 3, and the side length of the larger square is 9 − 3 = 6. The perimeter of one of the smaller squares is 4 × 3 = 12, so the total perimeter of the five smaller squares is 12 × 5 = 60. The perimeter of the larger square is 4×6=24. The total perimeter of all of the squares is 60+24= 84
100
5x 1000 + 2 x 10 +4=
5,024
100
There are 30 students in Kevin's math class. 18 own dogs, 9 own cats, and 7 own both dogs and cats. How many students own neither a dog nor a cat?
10 students
30 -18 -9 +7=10
100
What is (3 x 10) + (1 x 10) + (2 x 1000)=
2,040
200
CXXI
121
200
What is the Perimeter of an equilateral decagon with side length 12?
120
200
9 x 2 x 30=
540
200
Cynthia begins at the bad ladder. She climbs 6 rungs up, then climbs 2 rungs down. Finally, she climbs 7 rungs up to the top of the ladder. How many rungs does the ladder has?
6-2+7 =11
200
What is 5 x 9 x 2 x 2 x 5=
900
300
XXXVIII
38
300
The part of a line beginning at one point and extending forever in one direction
Ray
300
25x19=
475
300
Evaluate 4! + 3! + 2! + 1!=
4! + 3! + 2! + 1!= 24+ 6 + 2 + 1= 33
300
6√71
What is 11 R 5
400
XLVI
46
400
The perimeter of a square is 12 feet. Its area is...square feet?
A=9
400
3x 4 x 5 x 6 : 20=
18
400
A farmer has 36 chickens and rabbits. There are 96 legs altogether. How many chickens does the farmer have? How many rabbits does the farmer have?
What is 12 rabbits and 24 chickens.
400
4√411
What is 102 R 3
500
MDLXIX
1,569
500
Side length of a regular octagon is 8. What is the perimeter?
64
500
If a= 6 , then a+a2=
42
500
Mia writes a different digit in each blank below to create a sum of three 3-digit numbers. What is the smallest possible sum of the three numbers?
_ _ _+_ _ _+ _ _ _
What is 711
For example, 148+256+307
You coild have arranged the digits differently and still got the same sum. As long as you used 1,2, and 3 as the hundreds digits, and 6,7 and 8 as the ones digits, the sum always will be 711.
500
45 x 45=
2,025