Grade 5,6 Algebra @2

Algebra

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Grade : 5, 6

1. Multiply the following

1. 3a * 4b

2. 2s * s

3. 3xy * x

4. ab * cd

5. 7ab * 2bc

II. Divide the following

6.     45x² ÷ 9x 
7.   4xy² ÷ 2xy
8. 6x² ÷ x
9.  10x ÷ 9x
10. a²b²c² ÷ abc

III. Group the like the terms together:

11. 3a²b, 2ab, 5ab, 8a²b
12. 4xy, 2x, 5y, 9xy, y, x
ANSWERS

Grade 5,6 Algebra @1

Algebra 

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Grade: 5,6

Express each of the following as an algebraic expression:

1. The sum of y and 7 is...

2. 8 more than the number a is .....

3. 3 added to the sum of x and 7 is ---

4. Sum of two consecutive numbers is 11

5. Increase x by 9  ---

6. seven subtracted from the number you thought of ----

7. 8 less than the number you thought of ......

8. The number you thought of multiplied by 2

9. Twice the number you thought of subtracted by 4

10. Decrease the sum of a and b by c is ....

ANSWERS

Class 7 Decimals @2

Decimals

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Class: 7

1. Find the area of a rectangle whose length is 5.5m and breadth is 3.4m ?

2. If the cost of a book is Rs. 25.75, find the cost of 24 such books ?

3. A car covers a distance of 14.75km in one lit of petrol. How much distance will it cover in 15.5 lit of petrol ?

4. One kg of rice costs Rs. 42.65. What will be the cost of 18.25 kg of rice ?

5. One meter cloth costs Rs. 152.50. What is the cost of 10.75m of cloth ?

6. What is the excess of 75 over 48.29 ?

7. The cost of 1 kg sugar increases from Rs. 28.47 to Rs. 32.65. Find the increase in cost ?

8. 15 identical articles weigh 31.50kg. Find the weight of each article ?

9. The product of two numbers is 211.2. If one of these numbers is 16.5, find the oher number ?

10. One dozen identical articles cost 45.96. Find the cost of each article ?

ANSWERS

Grade 7 Decimals @1

DECIMALS

GRADE 7

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1. Express the following decimals as fractions in lowest form:

a) 0.04 

b) 3.25

c) 0.003

d) 24.01

2. Express the following fractions  as decimals. 

a) 12/10

b) 234/1000

c) 23/1000

d) 15 /2

3. Add the following :

a ) 12.4 + 23.09 + 12.003

b) 0.234 +1.89 + 12. 005

c) 23.890 + 0.23 + 204.224

d) 0.12 + 2.004 + 12.09

4. Write in ascending order:

a) 12.03 , 1.009, 123.12, 0.14

b) 1.12, 12.3, 102.120, 23.34

c) 0.01, 0.001, 0.1, 1.1, 1.3

d) 12.2, 10.12, 11.303, 102.23

5. Find the value of the following:

a) 9.756 - 3.405

b) 10.09 - 4.12

c) 12.098 - 5.12

d) 123.009 - 34.23

ANSWERS