Grade 6 · Ratios & Proportions
Ratios
469 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
Jason is mixing a batch of black paint. He needs to add 2 grams of charcoal for every 30 ml of water. If he adds 900 ml of water, how much charcoal does he add?
Warm-up
A paper company decides to operate their business more sustainably. They decide that for every tree they chop down, they want to plant three more. If the company chops down 200 trees in the first half of the year and 300 more trees in the second half of the year, how many more trees does the company need to plant?
Warm-up
On her birthday, Avianna bought red candles and blue candles in the ratio of 5:3. If Avianna had 45 red candles on her birthday, how many blue candles did she have?
Problems shown under their original terms: MIT.
Practice this free, right now
Unlimited math practice is on the free plan — no card, no trial clock.