WRITE ANSWERS FOR ANY 15 QUESTIONS.
1 ) When we add a negative integer we move to the left. ( Yes or No )
2) -2 + - 8 is equal to =
3) When a fraction is subtracted from a whole number , what type of a number we will get ?
4) What will we get if 1/3 0f 21 ?
5) 7 Rupees and 7 paise can be expressed in decimal as ……..
6) Which is greater 105 or 10.5 …….
7) What do you mean by Arithmetic mean ?
8) What is mode of a Data ?
9) What is a probability when a coin is tossed once, to get a tail ?
10) Five times a number p added to 4 is equal to 20. Express this statement in an equation form.
11) Add 4 to 8 times a number you get 60 . What is a number ?
12) Sum of 2 Supplementary angles equal to ?
13) Sum of 2 complementary angles equal to ?
14) Can two acute angles form a linear pair ?
15) Intersecting line of a parallel lines is called ?
16) How many medians can a triangle have ?
17) Can the exterior angle of a triangle be a straight angle ?
18) Can you have a triangle with all the 3 angles equal to 60 `?
19) When can we say that 2 triangles are congruent ?
20) Give any 2 real life examples for congruent.
Answers
Answer:
2) -2 + (-8)
= -2 - 8
= -10
4) 1/3 × 21
=1/3 × 21/1
= 21/3
5) 7 rupees + 7 paise
100 paise = 1 rupee
1 paise = 1/100 rupee
7 paise = 7 × 1/100 rupee
= 7/100 rupee
= 00.7 rupee
= 7 rupees + 00.7 rupee
= 7.007 rupees
6) 105 > 10.5
1. yes
2. - 2 + ( - 8) = - 100
3.rational number
4.1/3 × 21
= 1 × 7 ( 21 ÷ 3 )
= 7
5. 7.07 rupees
6. 105 > 10.5
7. Arithmetic mean means the average of numerical value in given data.
8 .The is the value which occur most of the time in the given data .
9.[ Heads , Tail ] 50% is the probability .
10. 5p + 4 = 20
12. Sum of two complementary ∠ = 90°
13.Sum of two supplementary ∠ = 180°
15. Transversal
16. 3 medians
18. Yes ( because sum all ∠of triangle = 180° )