Metric Units & Estimation
What is the standard metric unit used to measure the mass of a Year 9 textbook?
Grams (g)
How many seconds are in 3.5 minutes?
210 seconds (3.5 × 60)
What is the perimeter of a regular hexagon with a side length of 7 cm?
42 cm (6 × 7 cm)
Find the area of a rectangle with length 12 cm and width 5 cm.
60 cm² (12 × 5)
Calculate the volume of a cube with an edge length of 5 cm.
125 cm³ (5 × 5 × 5)
Convert 4.8 km into meters.
4,800 m (Multiply by 1,000)
Express 9:35 PM in 24-hour time format.
21:35
Calculate the circumference of a circle with a diameter of 14 cm. (Use π ≈ 22/7)
44 cm (C = π × d = 22/7 × 14)
Find the area of a triangle with base 10 cm and perpendicular height 7 cm.
35 cm² (1/2 × 10 × 7)
State the general formula for finding the volume of any prism.
Volume = Cross-sectional Area × length (or height)
Convert 350 mL into liters.
0.35 L (Divide by 1,000
Convert 0.04 seconds into milliseconds (ms).
40 ms (0.04 × 1,000)
If a circle has a radius of 6 cm, what is its exact circumference in terms of π?
37.7 cm (C = 2 × π × r)
Calculate the area of a parallelogram with a base of 9 cm and perpendicular height of 6 cm.
54 cm² (Area = base × height)
A triangular prism has a cross-sectional area of 18 cm² and a length of 10 cm. Find its volume.
180 cm³ (18 × 10)
An estimate for a doorway height is 2 m. If the actual measured height is 215 cm, what is the difference in meters?
0.15 m (or 15 cm)
A bus timetable shows departures at 08:15, 08:42, and 09:09. What is the regular interval between departures?
27 minutes
An L-shaped composite shape has consecutive sides measuring 8 cm, 10 cm, 3 cm, 4 cm, 5 cm, and 6 cm. Find its perimeter.
36 cm (8 + 10 + 3 + 4 + 5 + 6)
If a circle has a circumference of exactly 20π cm, what is the length of its radius?
10 cm (Since Circumference = 2 × π × radius, the diameter must be 20, meaning the radius is 10)
A rectangular water tank measures 10 m long, 5 m wide, and 2 m deep. How many liters of water can it hold? (1 m³ = 1,000 L)
100,000 Liters (Volume = 100 m³, 100 × 1,000)
Although we use the metric system, TV screens are often still measured in imperial units. If 1 inch is exactly 2.54 cm, what is the width in millimeters of a 10-inch tablet screen?
254 mm (10 inches = 25.4 cm. To convert cm to mm, multiply by 10 to get 254 mm)
A flight departs at 22:45 on Monday night and lands at 03:15 on Tuesday morning. How long was the flight?
4 hours 30 minutes
Calculate the perimeter of a semi-circle with a radius of 7 cm, including its straight base edge. (Use π ≈ 22/7)
36 cm (Curved arc length = 22 cm + Straight base = 14 cm)
A trapezium has parallel sides of 7 cm and 13 cm, with a height of 6 cm. Calculate its area.
60 cm² (Area = 1/2 × (7 + 13) × 6)
A cylinder has a base radius of 4 cm and a height of 10 cm. Find its volume in exact terms of π.
502.65 cm³ (Volume = π × 4² × 10)