Download Grade 7 Benchmark #2 Unit 1: Accentuate the Negative (add

Grade 7 Benchmark #2
Unit 1: Accentuate the Negative (add, subtract, multiply, and divide rational numbers)
Name:____________________________________________________
Part 1 (10 x 2 = 20 points)
For questions 1 – 10 bubble in your answers onto the scan card.
Q1 (7NS1) The temperature on a winter night in Kansas is -60C. The temperature decreases by 80
Celsius. What is the new temperature, in degrees Celsius?
1) - 2°C
2) 2°C
3) -14°C
4) 14°C
Q2 (7NS3) Emily earned $25 babysitting on Friday. On Saturday she babysat for 4 hours at a rate of $5
per hour. On Sunday she went to the store and spent $18 on a CD. How much money did Emily have
left after buying the CD?
1) $7
2) $12
3) $23
4) $27
Q3 (7NS1) The numerical expression
5 2
1
3
- (6 - ) +
is equal to
6 3
2
4
1)
 25
12
2)
 17
12
3)
20
12
4)
43
12
Q 4 (7NS3) Simplify the expression below.
2(23 — 22)
1) 0
2) 4
3) 8
4) 16
Q5 (7NS3) Simplify the expression below.
4 + 23 — |–4|
1) 6
2) 8
3) 14
4) 16
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Q6 (7NS3) A school store’s expenses and sales for a three month period are shown in the table below
Based on the data in the table, what is the loss or profit for the store for the three month period?
1) $182.00 loss
2) $42.00 loss
3) $15.00 profit
4) $140.00 profit
Q7 (7NS3) Carmel made 2/3 of a pound of trail mix. If she puts 1/6 of a pound into each bag, how
many bags can Carmel fill?
1) 5
2) 3
3) 4
4) 2
Q8 (7NS3) Simplify the following expression
4 + 3(2 – 6) + |(4 – 8)|
1) -4
2) -12
3) 20
4) 12
Q9 (7NS) Which of the following numbers is irrational?
1) √-2
2) 2.323232…
3) √121
4) -0.234
Q10 (7NS1) What number is represented on the following number line?
1) -18.5
2) -17.25
3) -17.5
4) 17.5
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Part 2 Answer these questions in the spaces in the question.
Q11 (7NS1) (2 points) Put the following numbers in order from smallest to largest and clearly mark
them on the number line.
-2
1
11
√16
- 1.89
Show your work here:
Q12 (7NS3) (3 points)
The chart below displays the daytime high and the nighttime low temperatures fro one Friday in
Anchorage, Alaska
Friday Daytime High
–7°F
Friday Nighttime Low
–16°F
Part A
How many degrees did the temperature drop from the daytime high to the nighttime low?
Answer
degrees
Part B
The warmest recorded temperature in Anchorage is 96 degrees higher than the Friday nighttime low
temperature. What is the highest recorded temperature for Anchorage, Alaska?
Show your work
Answer
F
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Q13 (7NS3) John and Anne are discussing how they change temperatures in degrees Celsius into
degrees Fahrenheit.
(3 points) If the temperature is 20° C, what is this in Fahrenheit? _____________
How close will Anne’s method be to the actual temperature?
_____________
Show how you determined your answer.
Q14 (7NS3) (2 points) What is the average of the following fractions?
1  5 3  9
,
, ,
8
8 8
8
Show your work
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Q15 (7NS3) (3 points) The low temperature on Sunday was -90F. The high temperature on Sunday was
14 degrees warmer than the low temperature.
What was the high temperature on Sunday?
Answer: __________
The low temperature on Monday was 6 degrees warmer than Sunday’s low of -90F. The low
temperature on Tuesday was 3 degrees warmer than Monday’s low. What was the low temperature on
Tuesday?
Show your work
Answer: ________
Q16 (6.NS.4) Use the distributive property to write the following expression in expanded form.
-5[3 – (-4)]
Answer:_________
Determine the value of the expression -5[3 – (-4)]
Answer:_________
Part 3 ( 5 x 2 = 10 points) (7.NS.1, 7.NS.2)
Complete the following:
a)5 x -4 = __________
d) 300 ÷ -6 = __________
b) -37 + 15 = ____________
c) 25 – (-16) = _____________
e) (4 – 6) x -4 = ____________
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