Using the distributive property, write the equivalent expressions of the following:
1. a(-x + y – z) =_____________________
2. -5(71 + 8m + 9 n) =_____________________
3. m(vi- vf) =_____________________
6. Inverses of Binary Operations
Addition: For any real number x, x . 1/x = 1.
Example: 100 + (-100) = 0
Multiplication: For any real number x, x . 1/x = 1.
Example: 98 . 1/98 = 1.
Classroom activity 3:
Matching type: Choose the answer from the choices below by writing the letter of the correct answer on the blank before the number.
a. Closure Property b. Commutative Property c. Associative Property
d. Identity Property
________1. 29 + 0 = 29 ________6. 5 + 6 = 6 + 5
-------------2. 4 + (6 +5) = (4 + 6) + 5 11 = 11
4 + 11 = 10 + 5 ________7. 5 x 10 = 10 x 5
15 = 15 50 = 50 __--________3. 49 . 1 = 49 ________8. 10 + (8 + 4) = (10 + 8) + 4
________4. 20 + 40 = 60 ________9. 8x + 7y = 7y + 8x
________5. 5 . 6 = 30 _______10. 10a x 2b = 2b . 10a
20ab = 20ab
Matching type: Choose the answer from the choices below by writing the letter of the correct answer on the blank before the number.
a. Closure Property b. Commutative Property c. Associative Property
d. Identity Property
________1. 29 + 0 = 29 ________6. 5 + 6 = 6 + 5
-------------2. 4 + (6 +5) = (4 + 6) + 5 11 = 11
4 + 11 = 10 + 5 ________7. 5 x 10 = 10 x 5
15 = 15 50 = 50 __--________3. 49 . 1 = 49 ________8. 10 + (8 + 4) = (10 + 8) + 4
________4. 20 + 40 = 60 ________9. 8x + 7y = 7y + 8x
________5. 5 . 6 = 30 _______10. 10a x 2b = 2b . 10a
20ab = 20ab
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Answer:
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Step-by-step explanation:
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