EduSahara™ Assignment
Name : Properties of Integers
Chapter : Integers
Grade : CBSE Grade VII
License : Non Commercial Use
Question
1
1.
Which of the following are true?
a)
13
+
17
=
17
+
13
b)
17
−
11
=
11
−
17
c)
5
✕
13
=
13
✕
5
d)
11
÷
5
=
5
÷
11
(i)
{b,a}
(ii)
{a,c}
(iii)
{b,c,a}
(iv)
{d,c}
(v)
{b,d,a}
Question
2
2.
Which of the following are true?
a)
18
✕
(
15
✕
17
)
=
(
18
✕
15
)
✕
17
b)
9
÷
(
18
÷
15
)
=
(
9
÷
18
)
÷
15
c)
15
+
(
17
+
9
)
=
(
15
+
17
)
+
9
d)
17
−
(
9
−
18
)
=
(
17
−
9
)
−
18
(i)
{d,c}
(ii)
{a,c}
(iii)
{b,a}
(iv)
{b,d,a}
(v)
{b,c,a}
Question
3
3.
Which of the following are true?
a)
11
✕
(
12
+
8
)
=
(
11
✕
12
)
+
(
11
✕
8
)
b)
8
−
(
3
✕
11
)
=
(
8
−
3
)
✕
(
8
−
11
)
c)
3
÷
(
11
+
12
)
=
(
3
÷
11
)
+
(
3
÷
12
)
d)
12
✕
(
8
−
3
)
=
(
12
✕
8
)
−
(
12
✕
3
)
(i)
{c,d}
(ii)
{b,d,a}
(iii)
{b,c,a}
(iv)
{b,a}
(v)
{a,d}
Question
4
4.
Which of the following are true?
a)
11
✕
15
=
15
✕
11
b)
3
−
7
=
7
−
3
c)
15
+
3
=
3
+
15
d)
7
÷
11
=
11
÷
7
(i)
{b,c,a}
(ii)
{b,a}
(iii)
{d,c}
(iv)
{b,d,a}
(v)
{a,c}
Question
5
5.
Which of the following are true?
a)
17
+
(
7
+
8
)
=
(
17
+
7
)
+
8
b)
7
−
(
8
−
4
)
=
(
7
−
8
)
−
4
c)
4
✕
(
17
✕
7
)
=
(
4
✕
17
)
✕
7
d)
8
÷
(
4
÷
17
)
=
(
8
÷
4
)
÷
17
(i)
{a,c}
(ii)
{b,d,a}
(iii)
{d,c}
(iv)
{b,c,a}
(v)
{b,a}
Question
6
6.
Which of the following are true?
a)
18
−
(
9
✕
19
)
=
(
18
−
9
)
✕
(
18
−
19
)
b)
8
✕
(
18
−
9
)
=
(
8
✕
18
)
−
(
8
✕
9
)
c)
9
÷
(
19
+
8
)
=
(
9
÷
19
)
+
(
9
÷
8
)
d)
19
✕
(
8
+
18
)
=
(
19
✕
8
)
+
(
19
✕
18
)
(i)
{c,d}
(ii)
{a,b}
(iii)
{b,d}
(iv)
{a,c,b}
(v)
{a,d,b}
Question
7
7.
Which of the following are true?
a)
integers are closed under division
b)
integers are closed under multiplication
c)
integers are closed under subtraction
d)
integers are closed under addition
(i)
{a,c}
(ii)
{a,b}
(iii)
{b,c,d}
(iv)
{a,b,c}
(v)
{a,d}
Assignment Key
1) (ii)
2) (ii)
3) (v)
4) (v)
5) (i)
6) (iii)
7) (iii)
