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1
This math property states that the sum of two rational numbers multiplied by a number is the sum of the product of each rational number and the number. For example: 4(1/2 + 3/2) = (4 x 1/2) + (4 x 3/2) = _____________________________
Associative property
Additive inverse
Commutative property
Distributive property
2
Multiply:
3
By what rational number should be multiplied to obtain 26 ?
4
If 30 trousers of equal size can be prepared in 54 meters of cloth, length of cloth is required for each trouser is ________________
9 metres
5
Reciprocal of is __________________
6
Name the property of multiplication illustrated by the following: -11/13 × -17/5 = -17/5 × -11/13
Closure property
7
Divide:
-2
8
Find the multiplicative inverse (reciprocal) of each of rational number:
-5
9
Divide the sum of by the product of .
10
7/3 + (6/3 + 2/3) = (7/3 + 6/3) + 2/3 , is explained by which property?
Associative over multiplication
Associative over addition
11
Find ,if
0
12
By what number should we multiply so that the product may be 24?
- 40
- 56
- 39
- 32
13
Which of the following is an example of the Identity Property of Multiplication?
1 + 2/5 = 2/5 + 1
1/4 + 0 = 1/4
1/3 X 1 = 1/3
7/2 X 5/1 = 35/2
14
Re -arrange suitably and find the sum :
15
What is the reciprocal of
16
Mohan rearranged an expression to make it easier to solve. He changed 1/2 + (2/3 + 1/5) to (1/2 + 2/3) + 1/5. Which of the following properties tells us that it is okay for Mohan to arrange the problem that way? Also simplify the expression.
Associative property of addition ,
Distributive property of multiplication over addition
Associative property of multiplication
17
Are (5/9 - 2/9) and (2/9 - 5/9) equal ? What do you come to know from the result ?
Rational numbers are closed in addition
Rational numbers are closed in subtraction
Rational numbers are not commutative in subtraction
Rational numbers are commutative in subtraction
18
Which of the following is the example of Identity Property of Multiplication?
1/4 x 1/6 = 1/24
1/4 X 0 = 0
1/3 + 1 = 4/3
7/2 X 1 = 7/2
19
7a + 2 = a(7) + 2, is explained by which property?
Commutative over multiplication
Commutative over Addition
20
7(a + 1/2) = 7a + 7/2, this is best explained by which of the following property?
Multiplicative inverse
Addtive inverse