unit 1a test review

Unit 1A Test ReviewAdding and Subtracting Rational Numbers

Get Ready• Grab a white board, marker, and eraser • Take out a clean sheet of paper and number it

#1-20 (This is where you will record the number of questions you get right)– Put a check next to the number if you get it correct

– Put a X next to the number if you get it wrong

Question 1

a)-2b)-8c) 2d) 5

Question 2

a) -4 + 3b) -4 + 7c) 3 + (-7)d) 0 + (-7)

Question 3It is 10°F when you wake up this morning. There is 3 feet of snow outside. The melting temperature of snow is 32°F. By how much must the temperature change to melt any of the snow?

a) 42°b) 22°c)-42°d)-22°

Question 4June is solving the problem -10 + 25 using colored tiles. She is using red tiles to represent negative numbers, and yellow tiles to represent positive numbers. After representing the expression, she removes all zero pairs from her mat. How many tiles will be on her mat at the end of the problem? What color will they be?

-+

a)35 red tilesb)15 red tilesc)25 yellow tilesd)15 yellow tiles

Question 5

Ryan borrows $10.00 from his brother to pay for a new video game and $11.75 from his Dad to go to the movies. How much money does he need to repay in order to be debt free (owe $0)?

a) $10.00b) $21.75c) $11.75d) $1.75

Question 6

50 + (-123)a) -73b) 73c) -173d) 173

Question 7

- + a) -

b)

c) -

Question 8

(-3.46) + (-7.8)a) -10.58b) -11.26c) -4.24d) -5.58

Question 9A shark swimming 200 feet below the surface of the water spots a fish and rises 100 feet. After eating the fish he dives down an additional 400 feet. His movement can be represented by the expression -200 + 100 + (-400). Where is the shark now in relation to the surface of the water?

a) 600 feet below surfaceb) 500 feet below surfacec) 400 feet below surfaced) 600 feet above the

surface

Question 10Which of the following expressions is

equivalent to -3 - 4 ?

a) 3 + 4b) -3 + 4c) -3 + -4d) 3 - 4

Question 11Josh is currently standing at 35 feet above sea level. Kim is standing at 5 feet below sea level. How far must Kim climb to be at the same elevation as Josh?

a) 40 feetb) 30 feetc) -30 feetd) -40 feet

Question 12Subtract -12 – 8 =

a) -4b) 4c) -20d) 20

Question 13Day Friday Saturday

Balance -$41.00 -$65.00

The table shows a bank account balance for a 2-day period.

Which integer describes the change in the balance of the account from Friday to Saturday? A) -$106.00B) -$24.00C) $24.00D) $106.00

Question 14

Simplify. (8.99 + 14.33)+ (-14.33)=

A) -28.66B) 8.99C) 18.23D) 37.65

Question 15

Solve + -6

a) -4b) -7c) 7

Question 16Solve. 3.2 + (-3) + (-2.37)=

A) -7.97B) -2.77C) -5.27D) -2.17

Question 17The desert climate is known for its extreme temperatures. The high temperature on Thursday was 102°. As soon as the sun went down, the temperature dropped 48°. By 5:00 am the temperature dropped an additional 30°. What was the temperature at 5:00 am?

A) -54°B) -178°C) 0°D) 24°

Question 18Debbie had $15.75 in her bank account at the beginning of the day. She then received a birthday card for $100. She decided to spend $30.50 to buy her classmates candy. How much is in her account now?

A) $115.75 B) $13.25 C) $69.50D) $85.25

Question 19Bill and Antonio shared a large pizza for lunch. Bill ate of the pizza and Antonio ate of the pizza. How much of the pizza did they eat altogether?A) B) C) D) 1

Question 20

Month Jan. Feb. March

April May

Weight change

in (lb)

+2 -3 -2 +2 -5

Mr. Newton begins a diet and exercise program and records the change in his weight each month. How did Mr. Newton’s weight change from January to May?

A) He lost 6 poundsB) He lost 3 poundsC) He gained 5 poundsD) He gained 10 pounds