NCTB Class 6 Math Chapter Three Exercise 3.3 Solution by Math Expert. Bangladesh Board Class 6 Math Solution Chapter 3 “Integers” Exercise 3.3 Solution.

Board |
NCTB |

Class |
6 |

Subject |
Mathematics |

Chapter |
3 |

Chapter Name |
“Integers” |

Exercise |
3.3 Solution |

__Exercise:- 3.3__

__Exercise:- 3.3__

**(1) Which of the following is the additive inverse expression of –a?**

**Solution:-**

** **(1) (a) Additive inverse expression of –a is (a) +a (Answer)

**(2) Which of the following is the sum of additive inverse number with 12?**

**Solution:- **

The sum of additive inverse number—(b) -12

**(3) — -15 = -10; what is the number in —**

**Solution:- **

5-15 = -10; The number is 5 (Answer)

**(4) The sum of the additive inverse of the second number with the first number is—**

**Solution:-**

** **(d) 15

**(6) If A=45-(-11) and B=57+(-4),**

**(i) A=56 (ii) B=-53 (iii) A-B=3;**

**Solution:- **

If A=54-(-11) ; B=57+(-4)

= 45+11 = 57-4

= 56 = 53

Therefore, A-B = 56-53 = 3

Answer:- (b) (i) and (iii) (Answer)

**(8) What type of number is the one that represents the ground floor?**

**Solution:- **

(b) Ground floor represents non negative.

**(9) Going up 3 stairs from the ground floor and then to move down 5 stairs from there—**

**Solution:-**

(b) – 2 (Answer)

**(10) Find the difference:**

**Solution:- **

(a) 35-20

= 15

(b) 72-90

= -18

**Solution:- **

(c) (-15)- (-18)

= -15+18

= 3

**Solution:- **

(d) (-20) -13

= -20-13

= -33

**Solution:- **

(e) 23- (-12)

= 23+12

= 35

**Solution:- **

(f) (-32)- (-40)

= -32+40

= 8

**(11) Fill in the blank with >,< or = sing.**

**(12) Fill in the blanks:**

**Solution:- **

(a) (-8)+(+8) = 0

(b) 13+(-3) = 10

(c) 12+(-12) = 0

(d) (-4) +-8 = -12

**(13) Find in value of :**

**Solution:-**

** **(13) (a) (-7)-8-(-25)

= -7-8+25

= -15+25

= 10 (Answer)

**Solution:- **

(13)(b) (-13)+ 32-8-1

= -13+32-8-1

= 19-8-1

= 10 (Answer)

**Solution:- **

(13)(c) (-7)+ (-8)+(-90)

= -7-8-90

= -105 (Answer)

**Solution:- **

(13)(d) 50- (-40)- (-2)

= 50+40+2

= 92 (Answer)

**(14) **

**Solution:-**

(a) -3<6

9>-3

(-3+6) = (9-6)

3=3 (Answer)

**Solution:- **

(14)(b) -(-3)+ (-6)+9

= +3-6+9

= 6 (Answer)

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