Measurement

How many centimetres are in 2.5 metres?

• A25 cm
• B50 cm
• C150 cm
• D250 cm✓

Answer: 1 metre = 100 cm, so 2.5 metres = 2.5 × 100 = 250 cm.

How many millilitres are in 3 litres?

• A300 ml
• B1,500 ml
• C3,000 ml✓
• D30,000 ml

Answer: 1 litre = 1,000 ml, so 3 litres = 3 × 1,000 = 3,000 ml.

How many grams are in 2.5 kilograms?

• A250 g
• B500 g
• C2,500 g✓
• D25,000 g

Answer: 1 kg = 1,000 g, so 2.5 kg = 2.5 × 1,000 = 2,500 g.

A rectangle has a length of 8 cm and a width of 5 cm. What is its perimeter?

• A13 cm
• B26 cm✓
• C30 cm
• D40 cm

Answer: Perimeter = 2 × (length + width) = 2 × (8 + 5) = 2 × 13 = 26 cm.

A square has a side length of 6 cm. What is its area?

• A12 cm²
• B24 cm²
• C36 cm²✓
• D48 cm²

Answer: Area of a square = side × side = 6 × 6 = 36 cm².

A rectangle has an area of 48 cm² and a length of 8 cm. What is its width?

• A4 cm
• B5 cm
• C6 cm✓
• D8 cm

Answer: Area = length × width. 48 = 8 × width, so width = 48 ÷ 8 = 6 cm.

How many metres are in 450 centimetres?

• A4.5 m✓
• B45 m
• C450 m
• D4,500 m

Answer: 1 metre = 100 cm, so 450 cm = 450 ÷ 100 = 4.5 m.

How many kilograms are in 3,500 grams?

• A0.35 kg
• B3.5 kg✓
• C35 kg
• D350 kg

Answer: 1 kg = 1,000 g, so 3,500 g = 3,500 ÷ 1,000 = 3.5 kg.

A triangle has a base of 10 cm and a height of 6 cm. What is its area?

• A30 cm²✓
• B45 cm²
• C60 cm²
• D120 cm²

Answer: Area of a triangle = (base × height) ÷ 2 = (10 × 6) ÷ 2 = 60 ÷ 2 = 30 cm².

A farmer has a rectangular field that is 50 metres long and 30 metres wide. What is the perimeter?

• A80 metres
• B100 metres
• C160 metres✓
• D200 metres

Answer: Perimeter = 2 × (50 + 30) = 2 × 80 = 160 metres.

How many litres are in 5,000 millilitres?

• A0.5 litres
• B5 litres✓
• C50 litres
• D500 litres

Answer: 1 litre = 1,000 ml, so 5,000 ml = 5,000 ÷ 1,000 = 5 litres.

A parallelogram has a base of 12 cm and a height of 5 cm. What is its area?

• A30 cm²
• B45 cm²
• C60 cm²✓
• D120 cm²

Answer: Area of a parallelogram = base × height = 12 × 5 = 60 cm².