Question

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Answer 1

1) natural number or whole number

2) rational number

3) irrational number

4) integer

5) associative property under with respect to multiplication over addition

6) left distributive property with respect to multiplication over subtraction

7) communitative property under addition

8) right distributive property with respect to multiplication over addition

9) +7

10) -4/9

11) -3.8

12) root -5

Explanation:

Answer 2

Explanation:

1) rational number

2) 5/4 = 1.25 rational number

3) √11 irrational number

4) - 12 rational number

5) (6*8) *5 = 6*(8*5) Associative property of multiplication

6) 7*(9-5) = 7*9 - 7*5 Distributive property upon subtraction

7) 84 + 16 = 16 +84 Commutative property of addition

8) (12 +5) *6 = 12*6 + 5*6 Distributive property upon addition

Given number additive inverse multiplicative inverse

9) - 7 +7
`(-1)/(7)`

10)
`(4)/(9)`
`-(4)/(9)`
`(9)/(4)`

11) 3.8 -3.8
`(1)/(3.8)`

12) √5 -√5
`(1)/(√(5) )`

Hint:

To find additive inverse, just reverse it's sign

a additive inverse is -a

-a additive inverse is a

Multiplicative inverse of a number 'x' is 1/x

Multiplicative inverse of a fraction a/b is b/a