7th Mathematics Monthly Test - 3(Number System) Question paper for Tamilnadu Stateboard / Matriculation Schools , Coaching Centers, tuition, tutorials,teachers, Students, parents

Part - A

Multiple Choice Question - Answer All Question

Which of the following does not represent an Integer?

0÷(-7)
20÷(−4)
(-9)÷3
(12)÷5

(-15)-(-18)=____

23
-13
13
-23

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?

12 mid night
12 noon
10 am
10 pm

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

2
8
0
20

11×(–1)=_____

-1
0
+1
–11

(−16)÷4 is the same as

-(-16÷4)
−(16)÷(-4)
16÷(-4)
−4÷16

20+(-9)+(9)

20
29
11
38

(-10)+(+7)=____

+3
-3
-17
+17

(-2)×−(-9)=_____

108
-108
+1
-1

Which property is illustrated by the equation:(5×2)+(5×5)=5×(2+5)

commutative
closure
distributive
associative

Part - B

Fill in the blanks - Answer All Question

Fill in the blanks
(i) -44+__ =-88 (ii)_-75=-45 (iii) ___ -(+50)=-80

(i) (-44)
(ii) 30
(iii) -30

____\(\times \) 75=0

0

_____\(\times \) (-9)=-45

5

(100) \(\times \) ______=-500

-5

Fill in the blanks
(i) -80\(\times \)__ =-80

1

Part - C

Generic 2 - Answer All Question

The product of two integers is −135. If one number is −15, Find the other integer.

What number should be added to (–17) to get (–19)?
Find the amount that is left in the student’s bank account, if he has made the following transaction in a month. His initial balance is Rs. 690
(i) Deposit(+) of Rs.485
(ii) Withdrawal(-) of Rs.500
(iii) Withdrawal(-) of Rs. 350
(iv) Deposit(+) of Rs. 89
(v) If another Rs. 300 was withdrawn, what would the balance be?

In 8 hours duration, with uniform decrease in temperature, the temperature dropped 24°. How many degrees did the temperature drop each hour?

In a quiz competition, Team
A scored +30,–20, 0 and team B scored –20, 0, +30 in three successive rounds. Which team will win? Can we say that we can add integers in any order?

Kabilan was having 10 pencils with him. He gave 2 pencils to Senthil and 3 to Karthik. Next day his father gave him 6 more pencils, from that he gave 8 to his sister. How many pencils are left with him?

Find all possible pairs of integers that give a product of −50.

Add the following
(i) 8 and –12 using number line
(ii) (–3) and (–5) using number line
(iii) (-100+(-10)
(iv) 20+(-72)
(V) 82+(-75)
(VI) -48+(-15)
(VII) -225+(-63)

Part - D

Generic 3 - Answer All Question

Add the following integers using number line (i) 10 and –15 (ii) –7 and –9

(i) Are 120 + 51 and 51 + 120 equal?
(ii) Are(-5)+[(-4)+(-3)] and [(-5)+(-4)]+(-3)equal?

A fruit seller sold 5kg of mangoes at a profit of ₹ 15 per kg and 3kg of apples at a loss of ₹ 30 per kg. Find whether it is a profit or loss.

A shopkeeper earns a profit of ₹ 5 by selling one notebook and incurs a loss of ₹ 2 per pen while selling of his old stock. In a particular day he earns neither profit nor loss. If he sold 20 notebooks, how many pens did he sell?

InstaQB

Institutions

12th Standard English Medium

12th Standard Tamil Medium

11th Standard English Medium

11th Standard Tamil Medium

10th Standard English Medium

9th Standard English Medium

8th Standard English Medium

7th Standard English Medium

Class XII

Class XI

12Th Standard

11Th Standard

10Th Standard

9Th Standard

7th Mathematics Monthly Test - 3(Number System)

MABS Institution

7th Mathematics Monthly Test - 3(Number System)-Aug 2020

Part - A

Multiple Choice Question - Answer All Question

Which of the following does not represent an Integer?

(-15)-(-18)=____

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?

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

11×(–1)=_____

(−16)÷4 is the same as

20+(-9)+(9)

(-10)+(+7)=____

(-2)×−(-9)=_____

Which property is illustrated by the equation:(5×2)+(5×5)=5×(2+5)

Part - B

Fill in the blanks - Answer All Question

Fill in the blanks (i) -44+____ =-88 (ii)___-75=-45 (iii) ___ -(+50)=-80

____\(\times \) 75=0

_____\(\times \) (-9)=-45

(100) \(\times \) ______=-500

Fill in the blanks (i) -80\(\times \)__ =-80

Part - C

Generic 2 - Answer All Question

The product of two integers is −135. If one number is −15, Find the other integer.

What number should be added to (–17) to get (–19)?

In 8 hours duration, with uniform decrease in temperature, the temperature dropped 24°. How many degrees did the temperature drop each hour?

In a quiz competition, Team A scored +30,–20, 0 and team B scored –20, 0, +30 in three successive rounds. Which team will win? Can we say that we can add integers in any order?

Kabilan was having 10 pencils with him. He gave 2 pencils to Senthil and 3 to Karthik. Next day his father gave him 6 more pencils, from that he gave 8 to his sister. How many pencils are left with him?

Find all possible pairs of integers that give a product of −50.

Add the following (i) 8 and –12 using number line (ii) (–3) and (–5) using number line (iii) (-100+(-10) (iv) 20+(-72) (V) 82+(-75) (VI) -48+(-15) (VII) -225+(-63)

Part - D

Generic 3 - Answer All Question

Add the following integers using number line (i) 10 and –15 (ii) –7 and –9

(i) Are 120 + 51 and 51 + 120 equal? (ii) Are(-5)+[(-4)+(-3)] and [(-5)+(-4)]+(-3)equal?

A fruit seller sold 5kg of mangoes at a profit of ₹ 15 per kg and 3kg of apples at a loss of ₹ 30 per kg. Find whether it is a profit or loss.

A shopkeeper earns a profit of ₹ 5 by selling one notebook and incurs a loss of ₹ 2 per pen while selling of his old stock. In a particular day he earns neither profit nor loss. If he sold 20 notebooks, how many pens did he sell?

Add: (i) (–70) and (–12) (ii) 103 and 39.

Find the value of : (i) (-35)\(\times \) (-11) (ii) 96\(\times \)(-20) (iii) (-5)\(\times \)12 (iv) 15\(\times \) 5 (v) 999\(\times \)0

Divide: (i) (−85) by 5 (ii) (–250) by (–25) (iii) 120 by (–6) (iv) 182 by (–2)

Part - E

Generic 5 - Answer All Question

What is the balance in Chezhiyan’s account as a result of a purchase for ₹ 1079, if he had an opening balance of ₹ 5000 in his account?

The temperature at Srinagar was −3°C on Friday. If the temperature decreases by 1°C next day, then what is the temperature on that day?

Are (–81) × [5×(–2)] and [(–81) × 5]×(–2) equal? Mention the property.

Prove that [(–2) × 3] ×(–4) = (–2) ×[3×(–4)].

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Tamilnadu Stateboardszs - Class

Fill in the blanks
(i) -44+__ =-88 (ii)_-75=-45 (iii) ___ -(+50)=-80

Fill in the blanks
(i) -80\(\times \)__ =-80

In a quiz competition, Team
A scored +30,–20, 0 and team B scored –20, 0, +30 in three successive rounds. Which team will win? Can we say that we can add integers in any order?

Add the following
(i) 8 and –12 using number line
(ii) (–3) and (–5) using number line
(iii) (-100+(-10)
(iv) 20+(-72)
(V) 82+(-75)
(VI) -48+(-15)
(VII) -225+(-63)

(i) Are 120 + 51 and 51 + 120 equal?
(ii) Are(-5)+[(-4)+(-3)] and [(-5)+(-4)]+(-3)equal?

Find the value of :
(i) (-35)\(\times \) (-11) (ii) 96\(\times \)(-20) (iii) (-5)\(\times \)12 (iv) 15\(\times \) 5 (v) 999\(\times \)0