Rewrite first as an addition. Then calculate the answer.
(+34) – (-25) = __________________ __________________
(-109) – (+65) = __________________ __________________
(+204) – (+56) = __________________ __________________
(-189) – (+311) = __________________ __________________
(-48) – (-52) = __________________ __________________
(+75) – (-39) = __________________ __________________
(+312) – (-208) = __________________ __________________
(+256) – (+256) = __________________ __________________
(-76) – (+31) = __________________ __________________
(-43) – (-106) = __________________ __________________
(-256) – (-256) = __________________ __________________
Answer the following word problems.
Mr. Jenzen pays off $750 of debt to his bank account. After the payment is made, he still shows a negative balance of $374. How much was he in debt before he made the payment?
Answer: __________________
The water level of the Dead Sea is at 390 meters below sea level. The deepest spot of the Dead Sea is at 800 meters below sea level. How deep is the Dead Sea at the spot?
Answer: __________________
On a day in March the temperature at noon in Tobolsk, Siberia is –18 degrees Celsius. At night the temperature sinks to –26.5 degrees Celsius. What is the temperature difference?
Answer: __________________
Rewrite each problem without the parentheses and then solve.
(+78) + (-15) – (-32) – (+110) = _____________________________ __________________
(-842) – (+128) – (-316) + (-412) = _____________________________ __________________
(-145) + (-84) – (39) – (-41) = _____________________________ __________________
(+42) – (+85) + (-47) – (-123) = _____________________________ __________________
© 2017 Laura Glassel – lizzietutoring.blogspot.com
Tuesday, November 28, 2017
Tuesday, November 21, 2017
New Worksheet - Math - Substitution
If x + y = 0, then solve the problems below.
1. If y = 3, evaluate: 2y + x + y + 1
What is the expression worth? _____________
2. If x = -5, evaluate: 2y + 2x + 5
What is the expression worth? _____________
3. If y = 4, evaluate: 3x + y – y + 10
What is the expression worth? _____________
4. If x = 2, evaluate: x + y + 3x + 4
What is the expression worth? _____________
5. If x = 1, evaluate: 2x + y + x + 6
What is the expression worth? _____________
6. If y = 2, evaluate: 2y + 3x + 4
What is the expression worth? _____________
7. If x = -3, evaluate: 4y + 3x + 7
What is the expression worth? _____________
8. If x = 7, evaluate: 2(x + y) + 2x + 3
What is the expression worth? _____________
9. If y = 4, evaluate: 3y + 2x + 8
What is the expression worth? _____________
10. If x = 6, evaluate: 3x – 2y + 7
What is the expression worth? _____________
© 2017 Laura Glassel – lizzietutoring.blogspot.com
Tuesday, November 14, 2017
New Worksheet - Math - Basic Algebra Practice
Solve.
1. 39 - 4z = 28 - 8z + 3
Answer: ______________________
2. 13 + 7x = 1 + 9x + 21
Answer: ______________________
3. 32 (x + 1) = 27x
Answer: ______________________
4. 0.2 x + 0.4 (5) = 0.3 (x + 2)
Answer: ______________________
5. 3 (2 - 4 (x + 1)) = - x
Answer: ______________________
6. 5 (3 - 7 (x + 2)) = 20 x
Answer: ______________________
7. 2 ( 5 + 3 (x - 4)) = - 2
Answer: ______________________
8. 11 - 3x/10 = 2
Answer: ______________________
9. 14 - 4x = 5 + x / 2
Answer: ______________________
10. 12 - 7x = - 32 + x / 3
Answer: ______________________
11. Clarence is about to publish a new book. The publisher has given him two options: receiving $10,000 up front and 5% of the sales of the book or $25,000 up front and 3% of the sales of the book. What do the sales have to be for Clarence to make the same amount from each option?
Answer: ______________________
12. Louise walked past Thurman at a speed of 2 feet per second. After 5 seconds, Thurman started after her at a speed of 4 feet per second. How many seconds did it take Thurman to catch Louise?
Answer: ______________________
13. Michael has some ordinary minutes that cost 50 cents per pound. If he wants to mix them with 10 pounds of minty mints that cost 80 cents per pound to create a mixture of "sorta minty mints" that cost 75 cents per pound, how much of the 60-cent candy must he use?
Answer: ______________________
14. The medieval spice merchant wants to blend some garlic powder, which costs 38 cents per pound, with 7 pounds of ground pepper, which costs 44 cents per pound, to create a big batch of medieval smelling salt worth exactly 40 cents per pound. How many pounds of the garlic powder should he use?
Answer: ______________________
15. Igor has a mixture containing 8% boric acid. He wants to combine this with 3 liters of a mixture containing 18% boric acid. How much of the 8% mixture must he use to create a combined mixture that has 12% boric acid?
Answer: ______________________
16. A 480-pound alloy containing 30% silver was mixed with an alloy containing 55% silver to get an alloy containing 40% silver. How many pounds of the 55% alloy were used?
Answer: ______________________
© 2017 Laura Glassel – lizzietutoring.blogspot.com
Tuesday, November 7, 2017
New Worksheet - Math - Simplyfing Single Variable Equations
Simplify.
1. x/2 + 2x + 4(x-8)
Answer: ______________________
2. x/4 + 3x + 5(x-2)
Answer: ______________________
3. x/3 + 7x + 2(x-9)
Answer: ______________________
4. x/5 + 4x + 3(x-3)
Answer: ______________________
5. x/2 + 8x + 6(x-4)
Answer: ______________________
6. 4x + (8-x) / 2 = 46
Answer: ______________________
7. 6x + (4-2x) / 2 = 12
Answer: ______________________
8. 4x + (12-4x) / 4 = 12
Answer: ______________________
9. 5x + (7-x) / 3 = 21
Answer: ______________________
10. 3x + (5-x) / 5 = 15
Answer: ______________________
11. 15x - 15 = 13 + x
Answer: ______________________
12. 2x - 6 = x + 18
Answer: ______________________
13. 8x - 4 = 8 +5 x
Answer: ______________________
14. 2x + 7 = 6x - 25
Answer: ______________________
15. 3x + 11 = 7x - 9
Answer: ______________________
© 2017 Laura Glassel – lizzietutoring.blogspot.com
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