Scale drawings and maps · Grade 5

In Grade 5 you learn: scaling shapes up and down.

Maps, plans and models are drawn to scale: every length is the real length divided by the same number. A scale written as a ratio like 1 : 50,000 means 1 cm on the drawing is 50,000 cm in real life, using the same unit on both sides.

Key facts

• Real length = drawing length × scale number.
• Drawing length = real length ÷ scale number.
• Useful: 100 cm = 1 m and 100,000 cm = 1 km.

Other years

• Scale drawings and maps · Grade 6
• Scale drawings and maps · Grade 7
• Scale drawings and maps · Grade 8