The Progressive Teacher Vol 04 Issue 03
This issue of The Progressive Teacher focuses on "New Trends in Education ". In this edition, articles explore contemporary trends to enhance interactive learning amongst students.
This issue of The Progressive Teacher focuses on "New Trends in Education ". In this edition, articles explore contemporary trends to enhance interactive learning amongst students.
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Class VII: mathematics<br />
Algebraic Expressions<br />
Tick ( ) the correct answer<br />
1. Which of the following is not a polynomial?<br />
a.<br />
2<br />
2 x<br />
5 – 3<br />
x c.<br />
b. x 3 + 4x 2 – 2x d.<br />
8 a –3a<br />
5<br />
9 x –2<br />
2<br />
5x<br />
3 2<br />
2. What is the degree of the polynomial<br />
5x 3 – 8x + 3x 5 + 4x 2 – 7x 4 + 1?<br />
a. 3 c. 5<br />
b. 1 d. 0<br />
3. 2x 2 + 7x 3 – 4x is a<br />
a. Monomial c. Trinomial<br />
b. Binomial d. None<br />
4. <strong>The</strong> sum of 9a 2 + 5a – 2 and 2a 2 – 4a + 6 is<br />
a. 11a 2 – a – 4 c. 7a 2 + a – 4<br />
b. 11a 2 + 9a + 8 d. 11a 2 + a + 4<br />
5. <strong>The</strong> value of expression [3(2x – 5) + 2(x 2 – 3x) + 10]<br />
for x = – 1 is<br />
a. –3 c. –15<br />
b. 3 d. 11<br />
6. <strong>The</strong> algebraic expression, when twice the sum<br />
of the numbers x and y is subtracted from their<br />
product is:<br />
a. xy – (x + y) c. 2(x + y) – xy<br />
b. xy – 2(x + y) d. xy(x + y)<br />
7. From the sum of 2(5x 2 – 2x + 3) and –7x 2 + x + 3,<br />
subtract 3(2x 2 – 7x – 4)<br />
a. 3x 2 – 3x + 9 c. –3(x 2 + 6x + 7)<br />
b. 3(x 2 + 6x + 7) d. x 2 – 10 x – 6<br />
8. What should be subtracted from 4a + 3b – 2 to<br />
get –6a + 2b – 4?<br />
a. 10a + b + 2 c. –10a – b – 2<br />
b. –2a + 5b – 6 d. 2a – 5b + 6<br />
worksheet<br />
Max Marks: 20<br />
9. If x = 1 and y = –1, then the value of 2x 2 y 2 – 2xy –3x<br />
– 4y + 8 is:<br />
a. –13 c. 9<br />
b. 13 d. 1<br />
10. <strong>The</strong> perimeter of a square of side 2x m is<br />
a. 4x c. x<br />
b. 4x 2 d. 8x<br />
Fill in the blanks.<br />
11. <strong>The</strong> numbers having a fixed value are called<br />
__________ and those which do not have fixed<br />
value are called __________.<br />
12. An expression containing constants and variables<br />
is called an __________.<br />
13. <strong>The</strong> degree of the polynomial<br />
5x 3 – 8x + 3x 5 + 4x 2 – 7x 4 + 1 is _________.<br />
14. An expression with only one term is called a<br />
__________.<br />
15. An algebraic expression with more than one terms<br />
is called a __________.<br />
State whether the following statements is True or False.<br />
16. Unlike terms cannot be added or subtracted<br />
the way like terms are added or subtracted.<br />
17. Terms which have different algebraic factors<br />
are like terms.<br />
18. A binomial is an algebraic expression with<br />
two variables.<br />
19. <strong>The</strong> degree of constant term is 0.<br />
1<br />
20. +<br />
2<br />
x<br />
2 x –1<br />
is a polynomial.<br />
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