Grand Test 20

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Grand Test 20

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Name *

District *

1. Left Distributive Law *

2 points

b(c+a)=ab+ac

(b+c)a=ba+ca

(a+b)c=ac+ab

a(b+c)=ab+ac

2. The Product of multicative inverse of 3/7 and additive inverse of -3/7 is *

2 points

49/9

9/49

-1

3. Identity Element in Rational numbers under addition *

2 points

-1

None

4.The Identity Element in Rational Numbers under Multiplication *

2 points

-1

None

5. Commutative Property is *

2 points

a+0=a

a×b×c=c×b×a

a+b=b+a

a+b+c=c+b+a

6.The additive Inverse of 2/3 is *

2 points

3/2

-2/3

Other:

7. The Rational number between 1 and 2 is *

2 points

2/3

6/5

5/6

4/5

Other:

8.Between two numbers there are infinite number of rationals is called *

2 points

Associate

Density

Closure law

None

Other:

9.a+(b+c)=(a+b)+c is called *

2 points

Associative law

Identity law

Inverse law

Closure law

Other:

10. Identity law is *

2 points

a+b=b+a

a+(-a)=0

a+0=a

None

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