NYSTCE ATAS Mathematical Concepts and Operations 5

Question 1

A student needs to find 15% of 80. Which calculation gives the correct answer?

Accepted Answer

0.15 × 80

Answer

To find a percentage of a number, convert the percent to a decimal and multiply: 0.15 × 80 = 12.

Question 2

Which of the following correctly orders these numbers from least to greatest: 0.6, 3/5, 58%, 0.605?

Accepted Answer

58%, 3/5, 0.6, 0.605

Answer

58% = 0.58, 3/5 = 0.60, 0.6 = 0.600, 0.605; so the order is 0.58, 0.60, 0.600, 0.605.

Question 3

A teaching assistant asks a student to estimate 497 + 312 by rounding to the nearest hundred. What is the estimate?

Accepted Answer

800

Answer

497 rounds to 500 and 312 rounds to 300; 500 + 300 = 800.

Question 4

A student models the equation x + 5 = 12. What value of x makes this equation true?

Accepted Answer

7

Answer

Subtracting 5 from both sides gives x = 12 − 5 = 7.

Question 5

What is the median of the data set: 4, 9, 2, 7, 5?

Accepted Answer

5

Answer

Arranged in order: 2, 4, 5, 7, 9 — the middle value is 5.

NYSTCE ATAS - NYSTCE Assessment of Teaching Assistant Skills Practice Test