## Thursday, 29 March 2012

### CBSE Class 6th ( VI) Mathematics Chapter 7. Fractions: Exercise 7.3 Solutions

1. Write the fractions. Are all these fractions equivalent?

### CBSE Class 6th ( VI) Mathematics Chapter 7. Fractions: Exercise 7.2 Solutions

1. Proper Fraction :
1. A proper fraction is a number representing part of a whole.
2. In a proper fraction the denominator shows the number of parts into which the whole is divided and the numerator shows the
number of parts we have taken out.
3. In a proper fraction the numeratoris always less than the denominator.

## Remember....

1. A fraction means a part of a group or of a region.
2.  5 is a fraction. We read it as "five-twelfths". 12
3. Here "12" stand for the number of equal parts into which the whole has been divided.
4. And "5" stand for the number of equal parts which have been taken out.
5. Here 5 is called the numerator and 12 is called the denominator.

## Remember...

1. The Highest Common Factor (HCF) of two or more given numbers is the highest (or
greatest) of their common factors. It is also known as Greatest Common Divisor (GCD).
1. Find the HCF of the following numbers :
(a) 18, 48 (b) 30, 42 (c) 18, 60 (d) 27, 63
(e) 36, 84 (f) 34, 102 (g) 70, 105, 175
(h) 91, 112, 49 (i) 18, 54, 81 (j) 12, 45, 75

## Remember...

1. if a number is divisible by another number then it is divisible by each of the factors of that number.
2. If a number is divisible by two co-prime numbers then it is divisible by their product also.
3. If two given numbers are divisible by a number, then their sum is also divisible by that number.
4. If two given numbers are divisible by a number, then their difference is also divisible by that number.

## Tuesday, 13 March 2012

### CBSE Class 6th ( VI) Mathematics Chapter 3. Playing with Numbers :Exercise 3.4

1. Find the common factors of :
(a) 20 and 28 (b) 15 and 25 (c) 35 and 50 (d) 56 and 120

 (a) 20 and 28 Factors of 20 are: 1, 2, 4, 5, 10, 20 Factors of 28 are: 1, 2, 4, 7, 14, 28 Common factors of 20 and 28 are 1, 2, 4

## Saturday, 10 March 2012

### CBSE Class 6th ( VI) Mathematics Chapter 3. Playing with Numbers :Exercise 3.3

1. Using divisibility tests, determine which of the following numbers are divisible by 2;
by 3; by 4; by 5; by 6; by 8; by 9; by 10 ; by 11 (say, yes or no):

 Number Divisible by 2 3 4 5 6 8 9 10 11 128 Yes No Yes No No Yes No No No 990 .... .... .... .... .... .... .... .... .... 1586 .... .... .... .... .... .... .... .... .... 275 .... .... .... .... .... .... .... .... .... 6686 .... .... .... .... .... .... .... .... .... 639210 .... .... .... .... .... .... .... .... .... 429714 .... .... .... .... .... .... .... .... .... 2856 .... .... .... .... .... .... .... .... .... 3060 .... .... .... .... .... .... .... .... .... 406839 .... .... .... .... .... .... .... .... ....

## Friday, 9 March 2012

### CBSE Class 6th ( VI) Mathematics Chapter 3. Playing with Numbers :Exercise 3.2

1. What is the sum of any two (a) Odd numbers? (b) Even numbers?

(a) The sum of any two Odd numbers is an Even number. i.e. 1+3=4, 3+5=8, 5+7=12
(a) The sum of any two even numbers is an Even number. i.e. 2+4=6, 4+6=10, 12+8=20

2. State whether the following statements are True or False:

## Wednesday, 7 March 2012

### CBSE Class 6th ( VI) Mathematics Chapter 3. Playing with Numbers :Exercise 3.1

1. Write all the factors of the following numbers :
 (a) 24 (b) 15 (c) 21 (d) 27 (e) 12 (f) 20 (g) 18 (h) 23 (i) 36
 (a) 24 24 = 1 × 24 24 = 2 × 12 24 = 3 × 8 24 = 4 × 6

## Monday, 5 March 2012

### CBSE Class VI ( 6th) Mathematics Chapter 2. Whole Numbers : Exercise 2.3

Question 1. Which of the following will not represent zero:
 (a) a + 0
 (b) 0 × 0
 (c) 0 2
 (d) 10×10 2

 (a) a + 0 and (d) 10×10 2

## Intext Questions (Comprehension Check (Page 128))

• Question . "I got up early, for me" It implies that
• he was an early riser
• he was a later riser.
• he got up late that morning.

### CBSE Class 6th ( VI) Mathematics Chapter 2. Whole Numbers : Exercise 2.2

Question 1. Find the sum by suitable rearrangement:
(a) 837 + 208 + 363 (b) 1962 + 453 + 1538 + 647

(a) 837+208+363
= (837+363)+208
= 1200+208
= 1408

## Intext Questions (Comprehension Check (Page 118))

Question 1.Mark the correct answer in each of the following.

• Early man was frightened of
1. lightning and volcanoes.
2. the damage caused by them.
3. fire.

## Friday, 2 March 2012

### Word Meaning

WordMeaning in EnglishMeaning in Hindi
Whiskersmoustacheमूंछ
Grimalkinold catवृद्ध बिल्ली
Cattalooa crossbreed between a cow and a buffalo.एक गाय और भैंस के बीच एक संकर प्रजाति
Knuckle bonebone of knucklesअंगुली की हड्डी
Venomouspoisonousविषैला
Shrivelingwrinkleझुर्री

### Word Meaning

WordMeaning in EnglishMeaning in Hindi
MonsterHorrible figureराक्षस, विकराल दैत्य
Stashplace of hidingछिपाने की जगह
Starvewithout foodभूखा
Scarsmarks of cut or injury or burnनिशान
Annoyedangryनाराज, अप्रसन्न
Stubbornone who doesn't listen or obey anyoneजिद्दी
Accompliceto assist or one who assist in doing a crimeसहकारी, सह - अपराधी