Math Core

This test covers adding, subtracting, multiplying and dividing integers and other rational numbers, and writing fractions as terminating or repeating decimals.

Question 1

Find $-15 + 7$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 2

Find $-9 - (-12)$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 3

At midnight the temperature on a mountain was $-18^\circ$ F. By noon it was $12^\circ$ F. How many degrees did the temperature rise?

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 4

Which expression has the same value as $-6 - 4$ ?

Question 5

Find $-\dfrac{4}{5} - \dfrac{1}{2}$ . Type your answer like -2/3.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 6

Find $3.45 + (-5.6)$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 7

A hiker starts at an elevation $1\tfrac{1}{3}$ miles above a lake. She hikes down $2\tfrac{1}{4}$ miles of elevation. What is her elevation now, compared with the lake, in miles? Type your answer like -2/3.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 8

Find $(-8)(9)$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 9

Find $-84 \div (-12)$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 10

The product $(-3)(-1)(-4)(2)(-5)$ is:

Question 11

Find $\dfrac{3}{4} \times \left(-\dfrac{6}{5}\right)$ . Type your answer like -2/3.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 12

Find $-2\tfrac{1}{2} \div \left(-\dfrac{3}{4}\right)$ . Type your answer like 2/3 or 1 2/3.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 13

Evaluate $-1.2 \times 5 + 16 \div (-8) \times \left(-\dfrac{1}{4}\right)$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 14

Write $-\dfrac{7}{20}$ as a decimal.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 15

Which is the decimal form of $\dfrac{5}{6}$ ?