a. Integers contain whole numbers and ___________numbers.

b. The greatest negative integer is________________

c. The successor of -99 is___________________

d. 0 is greater than every _________________integer.

e. The sign of the product of 8 negative integers and one positive integer is_______________

f. -7 x 29 x 0 x (-8) = _____________________

g. (-13) + __________ = (-13)

h. ____________ ÷ (-15) = 0

i. _____________ x 1 = 129

j. -8 / 2 = _________________

k. For all integers a, a ÷ _____________ = a and a ÷ (-1) = ________

l. When the dividend and divisor are of opposite sign, the quotient has a ___________sign.

m. On number line, when we add a positive integer or subtract a negative integer, we move to the_____________

n. We move to the _________on a number line if we add a negative integer or subtract a positive integer.

o. _______________is not commutative for integers.

p. [(– 10) × (+ 9)] + (– 10) = ________

i. The product of three negative integers is a negative integer.

ii. The product of a negative and positive integer may be zero.

iii. The smallest positive integer is 1.

iv. The identity element for addition in integers is 1.

v. The additive inverse of zero is the number itself.

vi. $ (-1)^{103} + (-1)^{104} = 0$

vii. The sum of two negative integers is less than either of the addends.

viii. Multiplication is not commutative for integers

ix. a – b = b – a

x. – 3 × 3 = – 12 – ( – 3)

One autumn morning the temperature went up from -4 ° C to 5° C

a. By how many degrees did the temperature rise?

b. During the afternoon the temperature then fell by seven degrees from 5°C .What was the temperature at the end of afternoon?

Height of a place A is 1800 m above sea level. Another place B is 700 m below sea level. What is the difference between the levels of these two places?

If p * q means p × q + 1 and p # q means – p + q –(–2), then find the value of the following:

(i) – 4 * 3

(ii) (–3) * (–2)

(iii) (–7) # (–3)

(iv) 2 # (–4)

(v) 7 * (–5)

(vi) (–7 * 2) # 3

Carry out the following addition and subtraction of integers a. (-11) + (12) - (-10) b. -1 - [ -1 - (-2)] c. (-4) - (-8) - (-10) d. -18 - (+10) e. (-99) - (+1) f. 999 - (-1)

1

a. Negative

b. -1

c. -98

d. negative

e. positive

f. 0

g. 0

h. 0

i. 129

j. -4

k. 1 and -a

l. negative

m. right

n. left

o. subtraction or division

p. -100

2.

i. True

ii. False

iii. True

iv. False

v. True

vi. True

vii. True

viii. True

ix. False

x. True

3.

a. 9

b. -2

4. 2500

5.

i. -11

ii. 7

iii. 6

iv. -4

v. -34

vi. 18

6. a.11 b. -2 c. 14 d. -28 e. -100 f. 1000

Given below are the links of some of the reference books for class 7 math.

- Mathematics for class 7 by R S Aggarwal
- Mathematics for Class 7 by R D Sharma
- Mathematics Foundation Course For JEE/IMO/Olympiad - Class 7
- IIT Foundation Physics, Chemistry & Maths for Class 7

You can use above books for extra knowledge and practicing different questions.

Thanks for visiting our website. From feedback of our visitors we came to know that sometimes you are not able to see the answers given under "Answers" tab below questions. This might happen sometimes as we use javascript there. So you can view answers where they are available by reloding the page and letting it reload properly by waiting few more seconds before clicking the button.

We really do hope that this resolve the issue. If you still hare facing problems then feel free to contact us using comment box given below or contact us directly by sending is an email at **[email protected]**

We are aware that our users want answers to all the questions in the website. Since ours is more or less a one man army we are working towards providing answers to questions available at our website.

Class 7 Maths Class 7 Science