EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Number System
Grade : ICSE Grade VII
License : Non Commercial Use
Question 1
1.
    • Write the number for the given expanded form :
    • "(4 ✕ 100000) + (7 ✕ 10000) + (6 ✕ 1000) + (4 ✕ 100) + (1 ✕ 10) + (8 ✕ 1)"
  • (i)
    476518
  • (ii)
    466418
  • (iii)
    476418
  • (iv)
    475418
  • (v)
    486418
Question 2
2.
The value of 1 − 49 is
  • (i)
    (-48)
  • (ii)
    (-47)
  • (iii)
    (-46)
  • (iv)
    (-49)
  • (v)
    (-50)
Question 3
3.
The value of 0 ✕ 53 ✕ 1 ✕ 10 is
  • (i)
    1
  • (ii)
    2
  • (iii)
    (-3)
  • (iv)
    0
  • (v)
    (-1)
Question 4
4.
Which of the following are true?
a)
integers are closed under subtraction
b)
integers are closed under addition
c)
integers are closed under division
d)
integers are closed under multiplication
  • (i)
    {c,b}
  • (ii)
    {c,d}
  • (iii)
    {c,a,b}
  • (iv)
    {a,b,d}
  • (v)
    {c,a}
Question 5
5.
    • Write the expanded form of the given number :
    • 925645
  • (i)
    (9 ✕ 100000) + (2 ✕ 10000) + (5 ✕ 1000) + (5 ✕ 100) + (4 ✕ 10) + (5 ✕ 1)
  • (ii)
    (9 ✕ 100000) + (2 ✕ 10000) + (6 ✕ 1000) + (6 ✕ 100) + (4 ✕ 10) + (5 ✕ 1)
  • (iii)
    (9 ✕ 100000) + (2 ✕ 10000) + (5 ✕ 1000) + (6 ✕ 100) + (3 ✕ 10) + (5 ✕ 1)
  • (iv)
    (9 ✕ 100000) + (2 ✕ 10000) + (5 ✕ 1000) + (6 ✕ 100) + (4 ✕ 10) + (5 ✕ 1)
  • (v)
    (9 ✕ 100000) + (2 ✕ 10000) + (5 ✕ 1000) + (7 ✕ 100) + (4 ✕ 10) + (5 ✕ 1)
Question 6
6.
    • Sort the following integers in descending order
    • -9,81,421  -24,69,410  13,36,009  47,78,418  -38,02,190  -5,82,061
  • (i)
    -24,69,410  13,36,009  47,78,418  -5,82,061  -38,02,190  -9,81,421
  • (ii)
    -5,82,061  -9,81,421  13,36,009  47,78,418  -24,69,410  -38,02,190
  • (iii)
    47,78,418  13,36,009  -5,82,061  -9,81,421  -24,69,410  -38,02,190
  • (iv)
    -24,69,410  -5,82,061  13,36,009  47,78,418  -9,81,421  -38,02,190
  • (v)
    -9,81,421  47,78,418  -38,02,190  -5,82,061  13,36,009  -24,69,410
Question 7
7.
Write the largest 6 digit number that can be formed with the digits : {2,4,8,5}
  • (i)
    8,88,542
  • (ii)
    8,82,845
  • (iii)
    2,84,588
  • (iv)
    4,88,852
  • (v)
    2,58,884
Question 8
8.
(18 − 12) ✕ (11 − 50) =
  • (i)
    (-235)
  • (ii)
    (-236)
  • (iii)
    (-234)
  • (iv)
    (-233)
  • (v)
    (-231)
Question 9
9.
Find the place value of 4 in 461,987
  • (i)
    40,000
  • (ii)
    4,000,000
  • (iii)
    40,000,000
  • (iv)
    400,000
  • (v)
    4,000
Question 10
10.
    • Solve |
    • -9
    • | = ?
  • (i)
    9
  • (ii)
    (
    -1

    9
    )
  • (iii)
    1

    9
  • (iv)
    0
  • (v)
    (-9)
Question 11
11.
The value of 0 − 14 is
  • (i)
    (-13)
  • (ii)
    (-15)
  • (iii)
    (-17)
  • (iv)
    (-14)
  • (v)
    (-12)
Question 12
12.
The value of 0 + 48 is
  • (i)
    48
  • (ii)
    46
  • (iii)
    49
  • (iv)
    50
  • (v)
    47
Question 13
13.
    • What is the smallest number that can be formed with the digits :
    • 2,8,3,1,7
    • ?
  • (i)
    12,378
  • (ii)
    72,381
  • (iii)
    32,178
  • (iv)
    28,317
  • (v)
    37,218
Question 14
14.
Which of the following are true?
a)
10
(
2
14
)
=
(
10
2
)
(
10
14
)
b)
14
÷
(
3
+
10
)
=
(
14
÷
3
)
+
(
14
÷
10
)
c)
2
(
14
3
)
=
(
2
14
)
(
2
3
)
d)
3
(
10
+
2
)
=
(
3
10
)
+
(
3
2
)
  • (i)
    {b,a}
  • (ii)
    {c,d}
  • (iii)
    {a,d}
  • (iv)
    {b,c,a}
  • (v)
    {b,d,a}
Question 15
15.
    • Sort the following integers in ascending order
    • 4  -9  -2  20  12  -3
  • (i)
    -2  4  12  -3  20  -9
  • (ii)
    20  4  -3  12  -9  -2
  • (iii)
    -3  -2  20  4  -9  12
  • (iv)
    -3  -2  -9  20  12  4
  • (v)
    -9  -3  -2  4  12  20
Question 16
16.
Which of the following is true?
a)
0 is to the right of 8 on the number line
b)
0 is to the left of 6 on the number line
c)
-5 is to the left of 8 on the number line
d)
-5 is to the right of 6 on the number line
  • (i)
    {a,d,b}
  • (ii)
    {a,b}
  • (iii)
    {d,c}
  • (iv)
    {a,c,b}
  • (v)
    {b,c}
Question 17
17.
Which of the following are true?
a)
15
÷
(
11
÷
16
)
=
(
15
÷
11
)
÷
16
b)
11
(
16
18
)
=
(
11
16
)
18
c)
18
(
15
11
)
=
(
18
15
)
11
d)
16
+
(
18
+
15
)
=
(
16
+
18
)
+
15
  • (i)
    {a,d,b}
  • (ii)
    {a,b}
  • (iii)
    {a,c,b}
  • (iv)
    {b,d}
  • (v)
    {c,d}
Question 18
18.
    • Write the number for the given expanded form :
    • "(5 ✕ 100000) + (5 ✕ 100) + (6 ✕ 10)"
  • (i)
    4,90,560
  • (ii)
    5,01,560
  • (iii)
    4,99,560
  • (iv)
    5,00,560
  • (v)
    5,00,660
Question 19
19.
The value of 19 + 8 is
  • (i)
    26
  • (ii)
    28
  • (iii)
    24
  • (iv)
    27
  • (v)
    30
Question 20
20.
Find the face value of 1 in 3,45,712
  • (i)
    2
  • (ii)
    100
  • (iii)
    10
  • (iv)
    1
Question 21
21.
Which of the following is true?
a)
-7 is to the right of -5 on the number line
b)
-9 is to the right of 6 on the number line
c)
-5 is to the left of 6 on the number line
d)
-9 is to the left of -7 on the number line
  • (i)
    {b,d}
  • (ii)
    {c,d}
  • (iii)
    {a,b,c}
  • (iv)
    {a,c}
  • (v)
    {a,d,c}
Question 22
22.
The value of 2 + 7 + 2 + 19 is
  • (i)
    31
  • (ii)
    28
  • (iii)
    30
  • (iv)
    33
  • (v)
    29
Question 23
23.
Find the difference in place value of 9 in 19,29,543
  • (i)
    8,91,001
  • (ii)
    8,90,999
  • (iii)
    8,90,998
  • (iv)
    8,91,002
  • (v)
    8,91,000
Question 24
24.
Write the smallest 5 digit number that can be formed with the digits : {2,5,9}
  • (i)
    22,295
  • (ii)
    25,229
  • (iii)
    22,259
  • (iv)
    92,225
  • (v)
    25,922
Question 25
25.
    • What is the smallest number that can be formed with the digits :
    • 3,4,8,2,1
    • ?
  • (i)
    48,231
  • (ii)
    13,428
  • (iii)
    82,431
  • (iv)
    81,324
  • (v)
    12,348
    Assignment Key

  •  1) (iii)
  •  2) (i)
  •  3) (iv)
  •  4) (iv)
  •  5) (iv)
  •  6) (iii)
  •  7) (i)
  •  8) (iii)
  •  9) (iv)
  •  10) (i)
  •  11) (iv)
  •  12) (i)
  •  13) (i)
  •  14) (iii)
  •  15) (v)
  •  16) (v)
  •  17) (iv)
  •  18) (iv)
  •  19) (iv)
  •  20) (iv)
  •  21) (ii)
  •  22) (iii)
  •  23) (v)
  •  24) (iii)
  •  25) (v)