8/8 Quick Check 7th Grade

On this number line that is oriented from left to right, points T and P are the same distance from 0. Complete the sentence regarding the possible location of points T and P.

Point T could be located at ​ (a)   and point P could be located at ​ (b)  

• -1.5
• 1.5
• -4.5
• 3.5

Tags

CCSS.6.NS.C.6C

The charge of any atom is the combined charge of its protons and electrons. A proton has a charge of +1 and an electron has a charge of -1.

The overall charge of an oxygen atom is 0 and it has eight electrons. How many protons must be in an oxygen atom?

• 0

• 8

• 16

• -16

Tags

CCSS.7.NS.A.1A

Match the equivalent expressions.

Groups:

(a) 7 - (-9)

,

(b) 7 - 9

,

(c) -7 - (-9)

,

(d) -7-9

• 7 + (-9)

• -7 + (-9)

• 7 + 9

• -7 + 9

Tags

CCSS.7.NS.A.1D

Which equation is true?

• 7 - 3 = 3 - 7

• 7 - 3 = -7 + 3

• 7 - 3 = 7 + (-3)

• 7 - 3 = -7 + (-3)

Tags

CCSS.7.NS.A.1B

The temperature in Antarctica at noon is 14°F. By 9:00PM, the temperature had dropped by 16 degrees. What was the temperature at 9:00PM?

• –2°F

• 2°F

• –30°F

• 
  30°F

Tags

CCSS.7.NS.A.3

What do you do when you are adding two numbers with the same sign? For example: -6 + (-4)

• add them together and keep the sign the same

• find the difference and keep the sign of the one with the greater absolute value

Tags

CCSS.7.NS.A.1C

What do you do when you are adding two numbers with different signs? For example: 6 + (-4)

• add them together and keep the sign the same

• find the difference and keep the sign of the one with the greater absolute value

Tags

CCSS.7.NS.A.1C

Would these equations result in positive or negative solutions?

Groups:

(a) Positive Solution

,

(b) Negative Solution

• -6 + 8

• -8 + (-9)

• 6 - 12

• 5 + 4

• -5 + 3

• -7 - (-2)

• 7 - 3

• -4 - (-7)

Tags

CCSS.7.NS.A.1C