Free ACT Practice Questions

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These are free, ACT-style practice questions across English, Math and Reading, each with a full explanation — including why the wrong choices are wrong. Answer the samples below, see each one explained, then create a free account for daily practice, full-length practice tests and a dashboard. No credit card.

Question 1 of 3

English · Production of WritingEasy

The research team returned back to the field site after lunch.

Which choice gives the best version of the underlined portion?

Explanation — Correct: B

To return already means to go back, so "returned back" repeats the same idea. The ACT rewards concision — the best answer says it once. B ("returned") removes the redundancy without losing any meaning.

Why the others miss: "NO CHANGE" keeps the redundant "back." "Returned back again" piles on a second redundant word. "Had returned back" keeps the redundancy and adds a tense that the simple sentence doesn't need.

Question 2 of 3

Math · AlgebraEasy

If 2(x + 4) = 18, what is the value of x?

Explanation — Correct: A

Distribute the 2: 2x + 8 = 18. Subtract 8 from both sides: 2x = 10. Divide by 2: x = 5. Check it — 2(5 + 4) = 2(9) = 18. ✓

Why the others miss: 9 is the value of (x + 4), one step short of solving for x. 7 comes from subtracting 4 before distributing the 2. 13 comes from never dividing by 2 after distributing.

Question 3 of 3

Reading · Key Ideas & DetailsEasy

Across the city, neighbors have begun turning empty lots into community gardens. Beyond the rows of vegetables, the gardens give families easy access to fresh produce, which improves the daily nutrition of the people who tend them. Just as important, the shared work of planting and watering brings neighbors together, strengthening ties on streets where many residents had never spoken before.

According to the passage, one benefit of the community gardens is that they

Explanation — Correct: C

The passage states the gardens "give families easy access to fresh produce, which improves the daily nutrition of the people who tend them." C restates that benefit almost word for word, so it is directly supported.

Why the others miss: Rent is never mentioned (A). The passage says the gardens give "easy access" to produce — not that they "replaced grocery stores" (B), an overstatement. And nothing in the text says who funds them (D). On ACT Reading, the answer has to be backed by the passage, not by what sounds reasonable.

Science · Data RepresentationMedium

A table shows reaction rate rising as temperature increases from 20°C to 60°C. At which temperature is the reaction rate highest?

A20°C

B60°C

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Free ACT practice, answered

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