Numbers and Operations Unit Test

Hey there, math explorers! Anika and Oliver are on a quest to understand why |-12| equals |12|. Can you help them figure it out?

• The absolute value of a number always gives the opposite of a negative number and the square of a positive number.

• The absolute value of a number gives its distance from zero on the number line.

• When the numbers are squared, they give the same answer.

• When you multiply either number by -1, you get the other.

Tags

CCSS.6.NS.C.7C

Abigail and Ethan are solving a math puzzle. Can you help them figure out which of the following expressions is equivalent to the mysterious expression?

• -4.5 + 8.1

• -4.5 + (-8.1)

• 4.5 + 8.1

• 4.5 - 8.1

Tags

CCSS.7.NS.A.1B

3. Solve. -11.0 - 3.5

• -14.5

• -7.5

• -13.5

• -15.5

Tags

CCSS.7.NS.A.1C

4. Solve. -3/4 + (-3/8)

• -1 1/8

• -1/2

• -5/8

• -1

Tags

CCSS.7.NS.A.1C

5. Solve. 26.04 ÷ -6.2

• -4.2

• -3.2

• 4.2

• 3.2

Tags

CCSS.7.NS.A.2B

Hey math wizards! Harper and Noah are having a debate. Can you help them solve this? What happens when you divide -3/6 by -3/8?

• Harper thinks the solution will be positive because both fractions are even.

• Noah argues the solution will be negative because there are two negative signs.

• Isla believes the solution will be positive because there are two negative signs.

• Harper wonders if the solution will be negative because there are two fractions.

Tags

CCSS.7.NS.A.2B

Zoe and Priya are having a math duel! Zoe says, "-2.5 ÷ (1/6) is easy!" Which of the following is a true statement about how Zoe should solve it?

• Since 1/6 is a repeating decimal, Zoe should convert the fraction 1/6 to a decimal and multiply decimals.

• Since 1/6 is a repeating decimal, Zoe should convert the decimal -2.5 to a fraction and multiply fractions.

• Since 1/6 is a terminating decimal, Zoe should convert 1/6 to a decimal and multiply decimals.

Tags

CCSS.7.NS.A.2C

If p and q are rational numbers, which equation is always true?

• -p + q = p - q

• p - q = 0

• p - q = p + (-q)

• p + (-q) = p + q

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

CCSS.6.EE.A.4

Luna's checking account balance was a chilly -25, and then she decided to withdraw 44 more for a spontaneous adventure. What is her checking account balance after this daring withdrawal?

• -69

• 19

• 69

• -19

Tags

CCSS.7.NS.A.1C

52 x -99 = __

• -5,247

• -151

• -5,148

• -47

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B