Name__________________________________
Have I Learned This – Math 7 Unit 1
Parent Signature_________________________
SOLs 7.1e, 7.3, 7.16 a, b, d
Teacher Signature________________________
Date of Retake___________________
Simplify each expression below. Circle your final answer.
1)
2)
5) −2(–3)(−5)
8) −8 +
*3) 12 – (−4) + 7
4) –5 + 12 – (–2)
6) 6(−3)(2)
7) 7 – (
9)
10) 7 – 4(−6)
)
Model the following expressions using counters, then show it on the number line, then evaluate.
11) −2 (3)
Answer: __________
12)
2 · ( −4)
Answer: __________
13) −2 + (−1)
Answer: __________
A company is digging a water well for a new house. On day 1, they reached the first point at 9 feet below
ground level. On day 2, they reached the second point at 17 feet below ground level.
14) Draw a number line picture and write an expression using absolute value to show the distance
between the two points on day 1 and day 2. Then solve it to find the actual distance.
Picture:
Expression:
Actual distance: _________
15) How far should a frog, sitting 3 inches under the water, jump in order to catch a mosquito that flies 4
inches above the water? Use absolute value to write an expression, and then evaluate.
Expression:
Actual distance: _________
16) Circle ALL expressions below that can be represented by the given model. (3 pts)
–5 + 9
0–5
–5 – (–9)
–5 + 4
–5 + (–4)
17) Write 3 different expressions that can be represented by the given model.
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Write a word problem to represent one of your expressions and solve it.
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18) Apply Commutative property of Addition to
7 + (4 + 12).
19) Apply Associative property of Multiplication to (7 ● 5) ● 25.
20) Break apart 78 to apply the Distributive Property. Show your work. Calculate the answer.
6 • 78 = _____________________________________
Create an example using the number 8 to demonstrate the following properties:
21) Multiplicative Identity __________________ 22) Additive Identity
23) Additive Inverse
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___________________24) Multiplicative Inverse ____________________