Rational Number Review

The elevation of Lake Eyra, Australia, is 15 meters below sea level. The elevation of Death Valley, California is 6 times that of Lake Eyra. What integer represents the elevation of Death Valley, California?

Tags

CCSS.7.EE.B.3

Which expressions, when simplified, give positive values? Select all that apply.

• $-\frac{1}{2\ }\times\frac{1}{3}$
  

• $\frac{1}{2}\times-\frac{1}{3}$
  

• $-\frac{1}{2}\times-\frac{1}{3}$
  

• 
  

  $-\frac{1}{2}\div-\frac{1}{3}$

• $\frac{1}{2}\div-\frac{1}{3}$

Tags

CCSS.7.NS.A.2A

Study the number line show. Consider the expression q-x.

In order to simplify the expression for what values of x will you move to the left from point q on the number line? Select all that apply.

• 0

• -2

• 1

• -4

• 3

Tags

CCSS.7.NS.A.1B

What is a possible first step when multiplying 4/5 by 3?

• multiply 5 by 3 and add 4

• add 3 and 4 and put the result over 5

• add 3 and 5 and multiply the result by 4

• multiply 4 by 3 and put the result over 5.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

-7.13 + (-4.2 + 10.6) =

Tags

CCSS.7.NS.A.1C

One fifth the product of 1 and -5.

Tags

CCSS.7.NS.A.2A

One-third of the product of -8 and 9.

Tags

CCSS.7.NS.A.2A

Half the sum of 8 and -6.

Tags

CCSS.7.NS.A.1C

Three times the sum of 12 and -6.

Tags

CCSS.7.NS.A.3

-4.2 - 7.13 - 10.6

Tags

CCSS.7.NS.A.1C