EduSahara™ Assignment
Name : Properties of Integers
Chapter : Numbers
Grade : ICSE Grade VIII
License : Non Commercial Use
Question 1
1.
Which of the following are true?
a)
14
+
12
=
12
+
14
b)
12
−
11
=
11
−
12
c)
19
✕
14
=
14
✕
19
d)
11
÷
19
=
19
÷
11
  • (i)
    {b,a}
  • (ii)
    {b,d,a}
  • (iii)
    {d,c}
  • (iv)
    {a,c}
  • (v)
    {b,c,a}
Question 2
2.
Which of the following are true?
a)
15
÷
(
9
÷
17
)
=
(
15
÷
9
)
÷
17
b)
9
✕
(
17
✕
18
)
=
(
9
✕
17
)
✕
18
c)
18
−
(
15
−
9
)
=
(
18
−
15
)
−
9
d)
17
+
(
18
+
15
)
=
(
17
+
18
)
+
15
  • (i)
    {a,b}
  • (ii)
    {a,c,b}
  • (iii)
    {a,d,b}
  • (iv)
    {c,d}
  • (v)
    {b,d}
Question 3
3.
Which of the following are true?
a)
18
✕
(
15
−
14
)
=
(
18
✕
15
)
−
(
18
✕
14
)
b)
8
✕
(
18
+
15
)
=
(
8
✕
18
)
+
(
8
✕
15
)
c)
14
÷
(
8
+
18
)
=
(
14
÷
8
)
+
(
14
÷
18
)
d)
15
−
(
14
✕
8
)
=
(
15
−
14
)
✕
(
15
−
8
)
  • (i)
    {c,a}
  • (ii)
    {c,b,a}
  • (iii)
    {c,d,a}
  • (iv)
    {d,b}
  • (v)
    {a,b}
Question 4
4.
Which of the following are true?
a)
4
✕
15
=
15
✕
4
b)
7
−
12
=
12
−
7
c)
15
+
7
=
7
+
15
d)
12
÷
4
=
4
÷
12
  • (i)
    {b,d,a}
  • (ii)
    {b,a}
  • (iii)
    {d,c}
  • (iv)
    {b,c,a}
  • (v)
    {a,c}
Question 5
5.
Which of the following are true?
a)
2
−
(
15
−
16
)
=
(
2
−
15
)
−
16
b)
19
+
(
2
+
15
)
=
(
19
+
2
)
+
15
c)
15
÷
(
16
÷
19
)
=
(
15
÷
16
)
÷
19
d)
16
✕
(
19
✕
2
)
=
(
16
✕
19
)
✕
2
  • (i)
    {a,b}
  • (ii)
    {b,d}
  • (iii)
    {c,d}
  • (iv)
    {a,c,b}
  • (v)
    {a,d,b}
Question 6
6.
Which of the following are true?
a)
17
✕
(
14
−
11
)
=
(
17
✕
14
)
−
(
17
✕
11
)
b)
11
÷
(
15
+
17
)
=
(
11
÷
15
)
+
(
11
÷
17
)
c)
14
−
(
11
✕
15
)
=
(
14
−
11
)
✕
(
14
−
15
)
d)
15
✕
(
17
+
14
)
=
(
15
✕
17
)
+
(
15
✕
14
)
  • (i)
    {b,a}
  • (ii)
    {a,d}
  • (iii)
    {b,d,a}
  • (iv)
    {c,d}
  • (v)
    {b,c,a}
Question 7
7.
Which of the following are true?
a)
whole numbers are closed under addition
b)
whole numbers are closed under multiplication
c)
whole numbers are closed under subtraction
d)
whole numbers are closed under division
  • (i)
    {c,d,a}
  • (ii)
    {c,a}
  • (iii)
    {d,b}
  • (iv)
    {c,b,a}
  • (v)
    {a,b}
Question 8
8.
Which of the following are true?
a)
integers are closed under addition
b)
integers are closed under multiplication
c)
integers are closed under subtraction
d)
integers are closed under division
  • (i)
    {d,a,b}
  • (ii)
    {a,b,c}
  • (iii)
    {d,c}
  • (iv)
    {d,a}
  • (v)
    {d,b}
    Assignment Key
  •  1) (iv)
  •  2) (v)
  •  3) (v)
  •  4) (v)
  •  5) (ii)
  •  6) (ii)
  •  7) (v)
  •  8) (ii)