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Monday, 28 May 2018
Thursday, 3 May 2018
ASSIGNMENTS OF CHAPTER ( 1, 2 AND 3 )
Assignment
of Integers
Class:VII Subject:
Mathematics
1.
Find the additive inverse of -2001.
2.
Evaluate: (i)
53+(-26) (ii) (-7)+(-23)
3.
Subtract -66 from -34
4.
The sum of two integers is 65. If one of
them is -31, find the other.
5.
If a = -8 , b = -7 , c = 6, verify that
(a+b)+c = a+(b+c)
6.
Subtract -134 from the sum of 38 and
-87.
7.
Find
2 X (-5) X (-6)
8.
Simplify: (i)
(-26) X 72 + (-26) X 28 (ii) (-1) X (-1) X (-1) X……..200 times
9.
Evaluate 168 ÷ (-14)
10.
In a class test containing 20 questions,
4 marks are given for every correct answer and (-2) marks are given for every incorrect
answer. Anita attempts all questions and 12 of her answers are correct. What is
her total score?
11.
A certain freezing process requires that
room temperature be lowered from 40°C at the rate of 5°C per hour. What will be
the room temperature 12 hours after the process begins?
12. Fill in the blanks:
a) (-60)-
………..=-59.
b) (-26)+{(-49)+(-83)}={(-26)+(-49)}+………….
c) …………./(-18)=-5.
d) (-21)x…………=0
e) (-8)/0=………..
13. Evaluate:
a) 9x(-12)x10
b) (-5)x(-5)x(-5)x………….6
times
c) 168/(-14)
14. If
a= (-6), b= (-4), then show that (a-b)=(b-a) or not.
15. Write
a pair of integers whose difference gives zero.
16. The
sum of two integers is 6. If one of them is (-3). Find the other.
17. The
difference of an integer p and (-8) is 3. Find the value of p.
18. Subtract
(-134) from the sum of (-1032) and 878.
19. What
will be the sign of product if we multiply together 199 negative and 10
positive integers?
20. Simplify:
a) (-27) x (-16) + (-27) x (-14)
b) (-25) x 8+ (-25) x 2
Assignment
of Fractions
1. Compare
the fractions:
and
.
2. Arrange
the following in ascending order:
,
,
,
.
3. Arrange
the following in descending order:
,
,
,
.
4. Find
the sum:
a)
+
b)
+
c) 2
+ 1
5. Find
the difference:
a)
–
b)
–
c) 3
– 1
6. Simplify:
a)
+
–
b) 5
– 2
+ 2
7. What
should be added to
to get 18
?
8. What
should be subtracted from 17
to get 11
?
9. Sarita
bought 5
Kg potatoes and 3
Kg tomatoes from a vendor. What is the total
weight of vegetables bought by her?
10. Rohit
ate
part of an apple and his sister Ritu ate the
remaining part of it. Who ate more and by how much?
11. Multiply:
by
.
12. Find
the product:
a)
×
b) 16 × 2
c) 2
× 4
13. Simplify:
a)
×
×
b) 1
× 1
×4
14. Find
:
a)
of 32
b)
of a day
15. Milk
is sold at Rs.16
per litre. Find the cost of 6
litres of milk?
16. Sajal
can walk 2
Km in an hour. How much distance will he cover
in 3
hours?
17. A
carton contains 16 boxes of nails and each box weighs 4
Kg . How much would a carton of nails weigh?
18. A
book of 216 pages. During last week Vikas
read
of the book. How many pages did he read?
19. A
tin contains 18Kg ghee. After consuming
of it. How much ghee is left in the tin?
20. Renu
spends
of her income on household expenses. Her
monthly income is Rs. 30,000. How much does she save every month?
21. Find
the reciprocal of
a)
6
b)
4
22. Divide:
(a)
by
(b) 8 by
(c) 3
by 5
(d) 2
by 1
23. A
rope of length 9
m is cut into 6 pieces of equal length. Find the
length of each piece .
24. If
the cost of 5
litres of
milk is Rs 236
, find its
cost per litre.
25. The
cost of 5
Kg of mangoes
is Rs. 231. At what rate per Kg are the mangoes being sold?
26. The
product of two numbers is 15
. If one of
the numbers is 6
, find the
other.
27. By
what number should 6
be multiplied
to get 40?
ASSIGNMENT
of Decimals
1. Convert
0.06 into a fraction in its simplest form.
2. Convert
12.25 as mixed fraction.
3. Convert
25/8 into decimal.
4. Convert
into like decimals:
6.5,16.03,0.274,119.4
5. Arrange
the following into ascending as well as descending order: 5.74,6.03,0.8,0.658,7.2
6. Express
6 rupees 6 paisa as rupees using decimals.
7. Express
7380 grams in Kg using decimals.
8. Add
: 17.4,86.79,9.435,8.8,0.03
9. Subtract
13.876 from 22.
10. By
much should 32.67 be increased to get 6.01?
11. Shayama
bought 4Kg 350g potato, 3Kg 80g tomato and some onion. If the total weight of
the three vegetables is 10Kg 200g, what is the weight of onion?
12. Rohit
purchased a notebook for Rs 23.75, a pencil for Rs2.85 and a pen for Rs 15.90.
He gave a 50rupee note to the shopkeeper. What amount did he get back?
13. Find
the product:
a) 7.54X10
b) 0.6X100
c) 0.076X1000
d) 36.73X48
e) 0.623X0.75
f) 11.1X1.1X0.11
14.
Evaluate:
a) (0.7)2 b)(1.5)3
15.
Divide:
a) 0.0662
by 10
b) 23.4
by 100
c) 1286.5
by 1000
d) 63
by 15
e) 2.575
by 25
f) 403.8
by 30
g) 0.228
by 0.38
16.
If the cost of a pen is Rs. 28.50.Find
the cost of 48 such pens.
17.
The cost of 1m of ribbon is
Rs.35.80.What will be cost of 9.8m of ribbon?
18.
1Kg of milk has 0.264Kg of fat. How much
fat is there in 12.5Kg of milk?
19.
A bowler took 15 wickets for 321 runs.
What is his average score per wicket?
20.
A car covers a distance of 108.9Km in
1.8hours. What is the average speed of the car?
21.
The cost of 24 toys of same kind is Rs.
783.60.What is the cost of each toy?
22.
The total weight of some bags of cement
is 1743Kg. If each bag weighs 49.8Kg,how many bags are there?
23.
Mr. Thakral distributed Rs. 1840 equally
among NCC cadets for refreshment. If each cadet received Rs. 28.75, how many
cadets were there?
24.
Mrs. Bose bought 15.5Litres of refined
oil for Rs. 1122.20.Find its cost per litre.
25.
The product of two decimals is 1.5008.
If one of them is 0.56, find the other.
26.
Each side of a polygon is 2.9cm in
length and its perimeter is 17.4cm.How many sides does the polygon have?
27.
Find the average of 4.2, 7.4 and 8.8.
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