"MID TERM EXAMS" "MATHEMATICS" "CLASS VII"

Q1) FILL IN THE BLANKS : 1) A polynomial having 1 Numbers of term is called a Monomial2) The Reciprocal of 1 is 103) Round off 4.8888 to two decimal places, we get 4.894) A polynomial having 2 Numbers of terms is called a binomial5) A polynomial having 3 Numbers of terms is called a Trinomial6) 12 - 2 - 9 = 17) 5 + 5 x 2 = 158) 3 x 4 - 2 = 109) 15 - 10 + 5 = 010) 7 x 5 - 5 = 3011) 15 + 15 - 30 = 012) 35 + 4 = 9 Q2) WRITE TRUE OR FALSE :1) Addition of rational number with as a + b = a+b/ c TRUE FALSE 2) Product of 2 and 3 is 2 TRUE FALSE 3) 0.45 is a terminating decimal . TRUE FALSE 4) 5 = 1 TRUE FALSE 5) (a+b)² = a² + 2ab + b² is TRUE FALSE 6) x² + 5x - 6 is equal to (x+6)(x-1) TRUE FALSE 7) -2 , 1 , 3 are some more examples of rational number. TRUE FALSE 8) 4.2666666 is a Non Recurring decimals. TRUE FALSE 9) There are two types of arcs. TRUE FALSE 10) In 5yz , the coefficients is 5 TRUE FALSE 11) 0 is rational number . TRUE FALSE 12) 0 is not a rational number . TRUE FALSE 13) Every integers are also a rational number . TRUE FALSE 14) Positive integers are not rational number. TRUE FALSE 15) 3+5+8+2 = 18 TRUE FALSE 16) 5.8661 into two decimal is 5.87 TRUE FALSE 17) 9.42221 into 2 decimal place is 9.43 TRUE FALSE 18) 4.23334 into 3 decimal places is 4.233 TRUE FALSE Q3) CHOOSE THE CORRECT ANSWER :1) If P= {1,2,3} , Q= {2,3,4} then P∩Q is : {2,3} {1,3} 2) If A= {x,y,z} , B={x,y,z} then A-B is : B NULL SET 3) If we round off the decimal 3.861 upto two decimal places we get . 3.84 3.86 4) When we convert 0.75 into the rational number , we get 3 1 5) A symbol having a fixed value is called a constant variable 6) The factor of a² - 9 are (a-3)(a-3) (a+3)(a-3) 7) The longest chord of a circle is the circle. diameter radius 8) Half of the circle is the chord semi circle 9) Reciprocal of 6 is 6 1 10) 2 + 5 is 2 7 11) 5a + 8a 14a 13a 12) a + a is a 2a 13) -12x , -2x -14x 14x 14) 9ab - 7ab 2ab 3ab 15) 8a - 5a 2a 3a 16) -7ab , -12ab 19ab -19ab 17) 9a x 6b 54ab -54ab 18) a + b x 9 9a + 9b 9a - 9b 19) 5a - 2a (3+4b) a-8ab -a-8ab 20) 10 / 10 is 1 0