Class VIII,Maths

I. Fill in the banks.                  (10×1=10)

a. All counting numbers are called ______________ number. (Natural number, Whole, Rational)

b. ____________ of the following is not whole number.  (1, 2, 0, -3)

c.   2+3+(-1) = ________

  (4, -4, -3)

d.    ½ + ½ = ________

(1, 2, 3)

e. The additive inverse of -¼ is ____

(¼, -¼, -¾,)

f. The reciprocal of ¼ is ______

(¼, -¼, )

g. _________ is a whole number but not natural number.

(0, 1, -2)

h.   If x – 2 = 7, then x= ______

 (8, 9, 10)

i.    The product of two rational numbers is always a ________.

(Rational number, Irrational number, none of these)

j. _________ has no reciprocal.

(0, 1, 2)

II.   Answer any five.      (5×2=10)

a. Define natural and whole number with examples.

b. Solve,  

c. Solve,  +  -

d. Solve, 14y – 8 = 13

e. Solve,    +  

f. 2x – 8 = 12, Find the value of x?

g. Find,    

III. Activity (20)

IV. CW/HW (10)