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compute diffrences of rational numbers <3

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Is the sum of -7 + 5 positive or negative?

a)

negative

b)

positive

2.

Which direction would the first arrow go on the number line model for:

-8 2/7 + -4 8/9

a)

top

b)

bottom

c)

left

d)

right

3.

What is the sum of -6 and 2 3/4?

a)

-31/4

b)

-16/7

c)

16/7

d)

-31/9

4.

The way in which three numbers are grouped when they are added or multiplied does not change their sum or product.

a)

comutative property

b)

distributive property

c)

Associative property

d)

identity property

5.

Which property does this represent:

3(9+4)=3.9+3.4

a)

associative property

b)

distributive property

c)

identity property

d)

commutative property

6.

Which property does this represent:

(5 + 7) + 6 = 5 + (7 + 6)

a)

distributive property of addition

b)

commutative property of addition

c)

identity property of addition

d)

associative property of addition

7.

Simplify using the distributive property:

3(2c - 5)

a)

9c-10

b)

6c-15

c)

14c-55

d)

4c-12

8.

What property allows this statement to be true?

ab = ba

a)

associative property of multiplication

b)

commutative property of addition

c)

idendity property of subtraction

d)

distributive property of division

9.

Which property does this represent:

7(x + 9)= 7x + 63

a)

distributive property

b)

associative property

c)

identity property

d)

commutative property

10.

Giuseppe was solving the problem:

(-8/8/13+12/3/4) +(-12/3/4)

He changed the problem to:

-8/8/13+(12/3/4+-12/3/4)

What property did Giuseppe use?

a)

identity

b)

commutative

c)

associative

d)

distributive