The temperature at 12 noon at a certain place was 18° above zero. If it decreases at the rate of 3° per hour at what time it would be 12° below zero?

(a)

12 mid night

(b)

12 noon

(c)

10 am

(d)

10 pm

(-10) + ( +7)=____

(a)

+3

(b)

-3

(c)

-17

(d)

+17

(-8) + 10 + (-2) = ____

(a)

2

(b)

8

(c)

0

(d)

20

The base of the parallelogram with area is 52 sq. cm and height 4 cm is

(a)

48 cm

(b)

104 cm

(c)

13 cm

(d)

26 cm

When we subtract ‘a’ from ‘-a’, we get _______

(a)

0

(b)

2a

(c)

-2a

(d)

-a

The solution of 3x + 5 = x + 9 is

(a)

2

(b)

3

(c)

5

(d)

4

If Mani buys 5kg of potatoes for Rs.75 then he can buy ______kg of potatoes for Rs.105.

(a)

6

(b)

7

(c)

8

(d)

5

12 cows can graze a field for 10 days. 20 cows can graze the same field for_____ days.

(a)

15

(b)

18

(c)

6

(d)

8

Adjacent angles have

(a)

no common interior, no common arm, no common vertex

(b)

one common vertex, one common arm, common interior

(c)

one common arm, one common vertex, no common interior

(d)

one common arm, no common vertex, no common interior

A line which intersects two or more lines in different points is known as

(a)

parallel lines

(b)

transversal

(c)

non-parallel lines

(d)

intersecting line

 -(30) + ____ = 60

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90

(100) \(\times \) ______= -500

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-5

____ + (-70) = 70 

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140

___ - (+50) = -80

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-30 

In the expression 25m + 14n, the type of the terms are ________ terms.

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unlike

The subtraction of 5m from −3m is __________

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-8m

An expression equated to another expression is called __________

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equation

If the cost of 8 apples is Rs. 56 then the cost of 12 apples is _____________.

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Rs. 84

16 taps can fill a petrol tank in 18 minutes. The time taken for 9 taps to fill the same tank will be _______ minutes.

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32

Draw a tetromino which passes symmetry __________

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The additive inverse of (–32) is (–32)

(a) True

(b) False

8 x (−4) = 32

(a) True

(b) False

Sum of a - b + c and -a + b - c is zero.

(a) True

(b) False

To add two like terms, its coefficients can be added.

(a) True

(b) False

Distance travelled by a bus and time taken are in direct proportion.

(a) True

(b) False

For any two integers 72 and 108, 72 +108 is an also an integer

(1)

0 + (−138) = (−138) = (−138)+0

(2)

Additive identity

1 x (-1098) = (–1098) = (–1098) x 1

(3)

Closed under addition

(4)

Multiplicative identity

(5)