7th Mathematics Weekly Test - 1(Algebra) Question paper for Tamilnadu Stateboard / Matriculation Schools , Coaching Centers, tuition, tutorials,teachers, Students, parents

Part - A

Multiple Choice Question - Answer All Question

In an expression, we can add or subtract only…

Like terms
Unlike terms
All terms
None of the above

The value of 7a − 4b when a = 3, b = 2 is

21
13
8
32

The numerical co-efficient of −7mn is

7
-7
p
-p

Choose the pair of like terms

7p, 7x
7r, 7x
−4x, 4
−4x, 7x

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

0
2a
-2a
-a

The addition of 3mn, −5mn, 8mn and −4mn is

mn
-mn
2mn
3mn

An algebraic statement which is equivalent to the verbal statement “Three times the sum of x and y” is

3(x + y)
3 + x + y
3x + y
3 + xy

The generalization of the number pattern 3, 6, 9, 12,… is

n
2n
3n
4n

The equation y + 1 = 0 is true only when y is

0
-1
1
-2

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

2
3
5
4

Part - B

Fill in the blanks - Answer All Question

The constant term of the expression 2y − 6 is ________

-6

The sum of twice and four times of the variable x is ______

6x

If a = 5, the value of 2a + 5 is _____

15

The additive inverse of − 37xyz is __________

37 xyz

The number of terms in the expression 3ab + 4c –9 is ________.

three

Part - C

True or False - Answer All Question

If x is a natural number, then x + 1 is its predecessor.

True
False

Every algebraic expression is an equation

True
False

2pq and − 7qp are like terms

True
False

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

True
False

The expressions 8x + 3y and 7x + 2y can not be added.

True
False

Part - D

Generic 2 - Answer All Question

Add: 2a+b+3c and a+\(\frac { 1 }{ 3 } b+\frac { 2 }{ 5 } \)c

Subtract −3ab −8 from 3ab + 8. Also, subtract 3ab + 8 from −3ab −8.

If x = 2 and y = 3, then find the value of the following expressions
(i) 2x − 3y
(ii) x + y
(iii) 4y − x
(iv) x + 1 − y

What should be subtracted from 2m + 8n + 10 to get −3m + 7n + 16?

Part - E

Generic 3 - Answer All Question

Find the value of
(i) 3m + 2n
(ii) 2m − n
(iii) mn − 1, given that m = 2, n = − 1.

Identify the variables, terms and number of terms in each of the following expressions: (i)12 −x
(ii) 7 + 2y
(iii) 29+3x+5y
(iv) 3x–5+7z

A person has Rs.960 in denominations of Rs.1, Rs.5 and Rs.10 notes. The number of notes in each denomination is equal. What is the total number of notes?

In an examination, a student scores 4 marks for every correct answer and loses one mark for every wrong answer. If he answers 60 questions in all and gets 130 marks, find the number of questions he answered correctly.

Part - F

Generic 5 - Answer All Question

Rani earns Rs.200 on the first day and spends some amount in the evening. She earns Rs.300 on the second day and spends double the amount as she spents on the first day. She earns Rs.400 on the third day and spends 4 times the amount as she spents on the first day. Can you give an algebraic expression of the total amount with her, at the end of the third day.

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7th Mathematics Weekly Test - 1(Algebra)

MABS Institution

7th Mathematics Weekly Test - 1(Algebra)-Aug 2020

Part - A

Multiple Choice Question - Answer All Question

In an expression, we can add or subtract only…

The value of 7a − 4b when a = 3, b = 2 is

The numerical co-efficient of −7mn is

Choose the pair of like terms

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

The addition of 3mn, −5mn, 8mn and −4mn is

An algebraic statement which is equivalent to the verbal statement “Three times the sum of x and y” is

The generalization of the number pattern 3, 6, 9, 12,… is

The equation y + 1 = 0 is true only when y is

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

Part - B

Fill in the blanks - Answer All Question

The constant term of the expression 2y − 6 is ________

The sum of twice and four times of the variable x is ______

If a = 5, the value of 2a + 5 is _____

The additive inverse of − 37xyz is __________

The number of terms in the expression 3ab + 4c –9 is ________.

Part - C

True or False - Answer All Question

If x is a natural number, then x + 1 is its predecessor.

Every algebraic expression is an equation

2pq and − 7qp are like terms

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

The expressions 8x + 3y and 7x + 2y can not be added.

Part - D

Generic 2 - Answer All Question

Add: 2a+b+3c and a+\(\frac { 1 }{ 3 } b+\frac { 2 }{ 5 } \)c

Subtract −3ab −8 from 3ab + 8. Also, subtract 3ab + 8 from −3ab −8.

If x = 2 and y = 3, then find the value of the following expressions (i) 2x − 3y (ii) x + y (iii) 4y − x (iv) x + 1 − y

What should be subtracted from 2m + 8n + 10 to get −3m + 7n + 16?

Part - E

Generic 3 - Answer All Question

Find the value of (i) 3m + 2n (ii) 2m − n (iii) mn − 1, given that m = 2, n = − 1.

Identify the variables, terms and number of terms in each of the following expressions: (i)12 −x (ii) 7 + 2y (iii) 29+3x+5y (iv) 3x–5+7z

A person has Rs.960 in denominations of Rs.1, Rs.5 and Rs.10 notes. The number of notes in each denomination is equal. What is the total number of notes?

In an examination, a student scores 4 marks for every correct answer and loses one mark for every wrong answer. If he answers 60 questions in all and gets 130 marks, find the number of questions he answered correctly.

Part - F

Generic 5 - Answer All Question

i) Add: 3x − 4y + z and 2x − z + 3y ii) Subtract 2x − 5y from 4x + 3y

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If x = 2 and y = 3, then find the value of the following expressions
(i) 2x − 3y
(ii) x + y
(iii) 4y − x
(iv) x + 1 − y

Find the value of
(i) 3m + 2n
(ii) 2m − n
(iii) mn − 1, given that m = 2, n = − 1.

Identify the variables, terms and number of terms in each of the following expressions: (i)12 −x
(ii) 7 + 2y
(iii) 29+3x+5y
(iv) 3x–5+7z

i) Add: 3x − 4y + z and 2x − z + 3y
ii) Subtract 2x − 5y from 4x + 3y