Rajasthan Board RBSE Class 7 Maths Important Questions Chapter 9 Rational Numbers Important Questions and Answers.
Rajasthan Board RBSE Solutions for Class 7 Maths in Hindi Medium & English Medium are part of RBSE Solutions for Class 7. Students can also read RBSE Class 7 Maths Important Questions for exam preparation. Students can also go through RBSE Class 7 Maths Notes to understand and remember the concepts easily. Students can access the data handling class 7 extra questions with answers and get deep explanations provided by our experts.
Multiple Choice Questions
Question 1.
11−22 is a standard form of:
(a) −1122
(b) 1122
(c) −1122
(d) −12
Answer:
(d) −12
Question 2.
Reciprocal of - 7 is:
(a) 7
(b) 17
(c) −17
(d) None of these
Answer:
(c) −17
Question 3.
-319 - 6 = ?
(a) 829
(b) −829
(c) 982
(d) −982
Answer:
(b) −829
Question 4.
Additive inverse of - 5 is:
(a) 15
(b) −15
(c) 5
(d) -5
Answer:
(c) 5
Question 5.
Multiplicative iñrerse of −32 is:
(a) 32
(b) 23
(c) −23
(d) 3
Answer:
(c) −23
Question 6.
2 ÷ 12 = ?
(a) 1
(b) -4
(c) 4
(d) None of these
Answer:
(c) 4
Fill in the Blanks:
Question 1.
0 is ________ than all negative rational numbers.
Answer:
Greater
Question 2.
On number line can be located towards the ________ side of zero.
Answer:
Left
Question 3.
Product of a number and in reciprocal is ________
Answer:
1
Question 4.
Sum of a number and its additive inverse is ________
Answer:
0
State whether True or False
Question 1.
0 is the smallest rational number.
Answer:
False
Question 2.
12 is greater than −12.
Answer:
True
Question 3.
If p and q are both negative then is a positive rational number.
Answer:
True
Question 4.
Product of two rational numbers is always a rational number.
Answer:
True
Very Short Answer Type Questions
Question 1.
Find standard form of −3690.
Answer:
HCF of 36 and 90 = 18
−3690 = (−36)÷1890÷18=−25
Thus, standard form of −3690 is −25
Question 2.
Draw the number line and represent and on it (on same number line).
Answer:
Question 3.
Simplify : −813×39−4
Answer:
Short Answer Type Questions
Question 1.
Find four rational numbers between 37 and 59.
Answer:
L.C.M of 7 and 9 = 63
∴ 37=3×97×9=2763 and 59=5×79×7=3563
∴ Rational no. between 2763 and 3563 are 2863,2963,3063,3163
Thus, four rational numbers between 37 and 59 are 2863,2963,3063,3163
Question 2.
Find greater rational number out of −34 and −73
Answer:
LCM of 4 and 3 = 12
Question 3.
Add −38 and −512
Answer:
(−3)8+(−5)12
LCM of 8 and 12 = 24
Question 4.
Subtarct −57 from −25
Answer:
−25−(−57)
LCM of 5 and 7 = 35