Grade 6 · Ratios & Proportions

Scale drawings

60 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

Warm-up
A model car is built using a scale of $1 : 9$ (model length : actual length). The actual car is $99$ cm long. What is the length of the model, in centimeters?
Warm-up
A model car is built using a scale of $1 : 19$ (model length : actual length). The actual car is $76$ cm long. What is the length of the model, in centimeters?
Warm-up
A model car is built using a scale of $1 : 13$ (model length : actual length). The actual car is $143$ cm long. What is the length of the model, in centimeters?

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