Rational Number Operations

Which expression, when evaluated, gives the greatest number?

•  $3\left(-5\right)$  

•  $-3+15$  

•  $15\div\left(-3\right)$  

•  $3-15$  

Tags

CCSS.7.EE.B.3

The low temperatures in Fairbanks, Alaska for 5 consecutive days were −12°F, −15°F, −7°F, 0°F, and 9°F. What was the change in temperature between the lowest and highest? (just type the integer solution)

(a)  

Tags

CCSS.7.NS.A.1C

Find the difference: -85 - (-37)

(a)  

Tags

CCSS.7.NS.A.1C

Which number below is an integer?

• -2.5

• -999

• 12.5

• $\frac{3}{4}$

A hot air balloon rises at a rate of 550 feet per minute. How high off the ground will the hot air balloon be in 5.5 minutes?

(a)  

Tags

CCSS.HSF-LE.A.1B

Andrew and David are playing a game where they each try to guess the integer. Which of the following is a number that Andrew and David could guess?

• -7.5

• -145.8

• $\frac{2}{3}$

• -78

Tags

CCSS.5.NBT.A.3

On a certain day the temperature in Minneapolis, MN was −10°C at 7:00 AM. By noon the temperature rose 15°C. Then by 10:00 PM the temperature dropped 28°C. What was the temperature at 10:00 PM?

(a)  

Tags

CCSS.7.NS.A.3

What is the value of -10 + 8 - (-15)?

(a)  

Tags

CCSS.7.NS.A.1C

Biff’s Bakery had a slow year. Biff recorded the store’s loss as −$10,308 for the year. How would Biff record the store’s average monthly loss?

• $859.00 loss

• $859.00 gain

• $343.60 loss

• $343.60 gain

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

The highest elevation in North America is Denali, in Alaska, with an elevation of 20,320 feet above sea level. The lowest elevation in North America is Death Valley, in California, with an elevation of 282 feet below sea level. What is the difference in the highest and lowest elevations in North America? (hint: draw a picture)

• 20,038 feet

• 20,138 feet

• 20,502 feet

• 20,602 feet

Tags

CCSS.7.NS.A.1C