ERB Mathematical Reasoning

Question 1

On the ERB ISEE math section, what does 'estimation' most commonly require students to do?

Accepted Answer

Find an approximate answer close to the actual value

Answer

Find the exact answer

Answer

Use a calculator

Answer

Convert units

Question 2

Which property states that a × (b + c) = a × b + a × c?

Accepted Answer

Distributive property

Answer

Commutative property

Answer

Associative property

Answer

Identity property

Question 3

What is the value of 3³ (3 to the power of 3)?

Accepted Answer

27

Answer

6

Answer

9

Answer

81

Question 4

On the ERB math section, if a ratio of boys to girls is 3:5 and there are 24 boys, how many girls are there?

Accepted Answer

40

Answer

30

Answer

35

Answer

45

Question 5

Which of the following is a prime number?

Accepted Answer

17

Answer

9

Answer

15

Answer

21

Question 6

What is 15% of 200?

Accepted Answer

30

Answer

25

Answer

35

Answer

40