1) Which of the following is the smallest positive integer *
1 point
-1
1
9
0
2) The pair of integers whose sum is -8 *
1 point
-9 , 1
8 , 0
-3, 5
-4, 12
3) Find the product of 4x(-7) x (-25) *
1 point
-350
700
350
-700
4) Which of the follolwing is false *
1 point
5 -7 = 7 - 5
5+7 = 7+5
5 x 7 = 7 x 5
0 ÷ 5 = 0 ÷ 7
5) The reciprocal of 5/4 is *
1 point
6/4
4/3
4/5
1
6) 3/4 of 28 is *
1 point
112
7
84
21
7) 4.5 ÷ 100 is *
1 point
0.0045
0.45
450
0.045
8) 3/7 ÷ 6/ 21 *
1 point
3
3/2
1/2
2/3
9) 3.05 x 10 = *
1 point
30.5
0.305
3.005
3.500
10) The product of 61/ 53 and its reciprocal is *
1 point
61/3
None of these
1
1/53
11) Which number should be added to -3 to get 6 *
1 point
-3
9
-9
3
12) The product of -4 and -9 is *
1 point
-36
36
-13
None of these
13) 5÷ (-20) = *
1 point
-16
5/20
-1/4
1/4
14) The difference between the highest and the lowest value of the observations in a data is called *
1 point
Range
Mean
Median
Mode
15) Find the range of the data 136, 129, 115, 125, 132, 120 *
1 point
16
126
26
21
16) The marks of 5 students in a test are 5, 9, 8, 6, 5. The mean of the data is *
1 point
8
5.6
6.6
7
17) The ages of 4 boys are 10, 9, 8, 13. The mean age of boys is *
1 point
10
9
8
13
18) 2.6 ÷ 0.02 *
1 point
130
0.13
2.06
1.3
19) 2/5 of 25 is *
1 point
25/2
5
10
15
20) The product of 1/3 and 24/ 5 is *
1 point
8
8/5
1/15
None of these
21. Divide 2/ 15 with the reciprocal of 5/ 7 *
2 points
2/51
14/75
2/21
2/31
22. The marks of Hemila in 5 subjects are 38, 32, 36, 37, 37. Find her average marks. *
2 points
35
37
36
36.5
23. Divide 10/3 with ( 1/2 of 4/9) *
2 points
20/9
10/9
21
15
24. Solve using appropriate identity: 133 x 18 + 18 x (-33) *
2 points
1600
1330
1833
1800
25.In a class test 5 marks are awarderd for every correct answer and (-2) marks are awarded for every incorrect answer. Renu gets 3 correct and 3 incorrect answers. what is her final score? *
2 points
10
9
6
0
26. In her science class, Vinu learned the atomic weights of the following elements. Find i)The difference between the atomic weights of carbon and hydrogen ii)The sum of atomic weights of chlorine and lithium and iii) The difference between atomic weights of nitrogen and oxygen *
3 points

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27.The rainfall in a city in 5 months was recorded. i) Find the range of the above data. ii) Find the mean rainfall of the data. iii) In which months was the rainfall more than the mean rainfall? *
3 points

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28. Use the number line to find the following: i) a+ c= _____ ii) d x a = _____ iii)a - ( -a) = ____ iv) d ÷ a= _____ *
4 points

Answers
Answered by
5
Answer:
1)-1
2)-9+1
Step-by-step explanation:
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