ERB Cheat Sheet 2026

The 30 highest-yield ERB facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. In a data set of seven numbers arranged in order — 4, 7, 9, 12, 15, 18, 22 — what is the median? → 12
2. What is the next number in the pattern: 2, 4, 8, 16, ...? → 32
3. A bag contains 4 red marbles, 3 blue marbles, and 5 green marbles. If one marble is chosen at random, what is the probability of selecting a blue marble? → 3/12
4. On ERB writing samples, what does 'coherence' refer to? → Ideas flowing logically and connecting clearly
5. In an ERB logic problem, if A is always greater than B and B is always greater than C, which statement is true? → A > C
6. In a sequence 2, 4, 8, 16, ___, what is the next number? → 32
7. On the ERB ISEE verbal section, what does an analogy question primarily test? → Relationships between word pairs
8. A container holds 2 liters of water. How many milliliters is this? → 2,000 mL
9. Which word correctly completes this sentence: 'Neither the students nor the teacher ___ ready'? → was
10. What is the difference between the main idea and supporting details? → The main idea is a broad summary; supporting details provide evidence for the main idea.
11. A student has 5 more marbles than his friend. Together they have 33 marbles. How many does the student have? → 19
12. A frequency table shows that in a class, 6 students scored 60–69, 10 scored 70–79, 8 scored 80–89, and 4 scored 90–99. How many students are in the class? → 28
13. What is the contrapositive of 'If it is raining, then the streets are wet'? → If the streets are not wet, then it is not raining.
14. A stem-and-leaf plot shows: Stem 4 | Leaves 2 5 7; Stem 5 | Leaves 0 3 8; Stem 6 | Leaves 1 4. What is the median of this data set? → 53
15. In ERB logic, what is a 'valid argument'? → An argument where the conclusion follows logically from the premises
16. What is the definition of social awareness? → Recognizing and responding appropriately to the feelings and needs of others
17. On ERB verbal tests, what type of question asks students to pick the word that does NOT belong with the others? → Odd one out
18. When summarizing a passage, what should you include? → The main idea and key supporting details
19. On the ERB ISEE, which of the following best describes a 'stanine score'? → A score on a 9-point scale comparing students nationally
20. Which is the best way to determine how well an idea is developed in a passage? → Analyze how effectively the supporting details connect to the main idea
21. What does it mean to 'draw an inference' on an ERB assessment? → Reach a conclusion not directly stated based on available information
22. What is the opposite of 'verbose' as tested in ERB antonym questions? → Concise
23. What is a dangling modifier in writing, as assessed on ERB tests? → A word that modifies the wrong noun due to incorrect placement
24. What is the purpose of a topic sentence in a paragraph tested by ERB? → To introduce the main idea of the paragraph
25. When proofreading an ERB essay, which error involves using the wrong word that sounds similar to the correct one? → Homophone error
26. What is the least common multiple (LCM) of 4 and 6? → 12
27. If a train travels 60 miles in 1.5 hours, what is its average speed? → 45 miles per hour
28. What does the ERB's ISEE essay section require students to do? → Write a response to a provided prompt that is sent to schools unscored
29. Which sentence demonstrates correct use of a semicolon? → He studied hard; therefore, he passed the exam.
30. What is the value of 3³ (3 to the power of 3)? → 27