Math Review

What is the result of adding two negative integers?

• The result is a positive integer.

• The result is zero.

• The result is a negative integer.

• The result is an undefined value.

Tags

CCSS.7.NS.A.1C

If Audrey's laptop can be used for 7 hours in energy-saving mode and she used it for 3 hours, how many more hours can she use it in regular mode (5 hours total)?

• 2 hours

• 2 \( \frac{5}{7} \) hours

• 2 \( \frac{6}{7} \) hours

• 3 hours

Tags

CCSS.7.EE.B.3

What is the probability of rolling a 5 on a standard die?

• \( \frac{1}{2} \)

• \( \frac{1}{3} \)

• \( \frac{1}{6} \)

• \( \frac{1}{4} \)

Tags

CCSS.7.SP.C.7A

How do you calculate the total time used if you have two different modes of usage?

• Total time used = Time in mode 1 + Time in mode 2.

• Total time used = Time in mode 1 - Time in mode 2.

• Total time used = Time in mode 1 * Time in mode 2.

• Total time used = Time in mode 1 / Time in mode 2.

Tags

CCSS.3.OA.A.3

Define probability in the context of rolling a die.

• Probability is the measure of the likelihood that an event will occur, expressed as a fraction of the total possible outcomes.

• Probability is the certainty that an event will happen, with a value of 1.

• Probability is the chance of an event occurring, represented as a whole number between 0 and 10.

• Probability is the measure of how often an event will not occur, expressed as a percentage.

Tags

CCSS.7.SP.C.5

What is the total cost if Carter bought a pack of gum for $1.29 and 5 candy bars at $1.59 each?

• $7.89

• $8.99

• $9.24

• $10.50

Tags

CCSS.7.EE.B.3

What is the sum of two negative numbers?

• The sum of two negative numbers is always positive.

• The sum of two negative numbers is always negative.

• The sum of two negative numbers can be zero.

• The sum of two negative numbers is always a positive integer.

Tags

CCSS.7.NS.A.1C

What is the result of the expression 2 - 4?

• -1

• 0

• -2

• 1

Tags

CCSS.7.NS.A.1C

How do you convert a mixed number to an improper fraction?

• Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

• Add the whole number to the numerator and keep the denominator the same.

• Multiply the numerator by the denominator and subtract the whole number.

• Divide the numerator by the whole number and keep the denominator unchanged.

What does it mean to simplify a fraction?

• To convert a fraction into a decimal form.

• To reduce a fraction to its lowest terms by dividing the numerator and denominator by their greatest common divisor.

• To add the numerator and denominator together.

• To multiply the numerator and denominator by the same number.