Integers
T D S
Division and Multiplication
Mystery
Area and Perimeter
100
What is ...
(+1) + (+2)
+3
100
A car travels 180 kilometers in 3 hours. What is its average speed?
Average speed = Total distance ÷ Total time
Average speed = 180 km ÷ 3 hours = 60 km/h
100
2 x 7
14
100
64 x 2
128
100
A rectangle has a length of 12 meters and a width of 8 meters. What is its perimeter and area?
- Perimeter = 2 × (Length + Width)
Perimeter = 2 × (12 m + 8 m) = 2 × 20 m = 40 meters - Area = Length × Width
Area = 12 m × 8 m = 96 square meters
200
What is the answer of ...
(+2) + (-1)
1+
200
A train moves at a constant speed of 72 km/h. How long will it take to cover a distance of 360 kilometers?
Time = Distance ÷ Speed
Time = 360 km ÷ 72 km/h = 5 hours
200
20 x 4
80
200
8
200
A circle has a radius of 7 centimeters. What is the area and the circumference of the circle? (Use π ≈ 3.14)
- Area = π × Radius²
Area = 3.14 × 7² = 3.14 × 49 = 153.86 square centimeters - Circumference = 2 × π × Radius
Circumference = 2 × 3.14 × 7 = 43.96 centimeters
300
what is...
(-4) + (-7)
-11
300
A cyclist travels 45 kilometers in 1.5 hours. What is the cyclist's speed?
Speed = Distance ÷ Time
Speed = 45 km ÷ 1.5 hours = 30 km/h
300
31 x 3
93
300
40
300
A triangle has a base of 10 cm and a height of 5 cm. What is its area?
- Area = ½ × Base × Height
Area = ½ × 10 cm × 5 cm = 25 square centimeters
400
What is the answer of...
(+16) + (-7)
-9
400
A runner covers a distance of 10 kilometers in 50 minutes. What is the runner's average speed in meters per second?
10 kilometers = 10,000 meters
Convert time to seconds: 50 minutes = 50 × 60 = 3000 seconds
Speed = Distance ÷ Time
Speed = 10,000 meters ÷ 3000 seconds = 3.33 meters per second
400
88/ 40
2.2
400
8888/ 202
44
400
A square has a side length of 15 inches. What is the perimeter and area of the square?
- Perimeter = 4 × Side length
Perimeter = 4 × 15 inches = 60 inches - Area = Side length²
Area = 15 inches × 15 inches = 225 square inches
500
What is...
(-22) + (+24)
+2
500
A plane travels a distance of 1200 kilometers with a constant speed of 400 kilometers per hour. However, due to strong wind currents, the plane's speed is reduced by 25% for the first 2 hours of the flight. How far will the plane travel in total during these 2 hours?
Speed during the first 2 hours (reduced by 25%): Reduced speed = 400 km/h − 25% of 400 km/h = 400 km/h − 100 km/h = 300 km/h
Distance traveled in the first 2 hours: Distance = Speed × Time
Distance = 300 km/h × 2 hours = 600km
500
147/98
1.5
500
(-2333) + (+434)
-1899
500
A parallelogram has a base of 18 meters and a height of 6 meters. What is its area and perimeter if the length of the other side is 10 meters?
- Area = Base × Height
Area = 18 m × 6 m = 108 square meters - Perimeter = 2 × (Base + Side length)
Perimeter = 2 × (18 m + 10 m) = 2 × 28 m = 56 meters