Sujeet Kumar

Question 1.Write the proper signs >, < or = in the boxes below: Solution:

Question 1.Add: Solution: 1. 8 + 6 = (+8) + (+6) = +14 2. 9 + (-3) = (+9) + (- 3) = +6 3. 5 + (-6) = (+5) + (-6) = -1 4. -7 + 2 = (-7) + (+2) = -5 5. -8 + 0 = (-8) + 0 = -8 6. … Read more

Number 47 +52 -33 -84 -21 +16 -26 80 Opposite number Solution: Number 47 +52 -33 -84 -21 +16 -26 80 Opposite number -47 -52 +33 +84 +21 -16 +26 -80

Question 1.Classify the following numbers as positive numbers and negative numbers.-5, +4, -2, 7, +26, -49, -37, 19, -25, +8, 5, -4, -12, 27Solution: Positive Numbers +4, 7, +26, 19, +8, 5, 27 Negative Numbers -5, -2, -49, -37, -25, -4, -12 Question 2.Given below are the temperatures in some cities. Write them using the … Read more

Question 1.Use the proper geometrical instruments to construct the following angles. Use the compass and the ruler to bisect them: Solution: Intext Questions and Activities Question 1.Construct an angle bisector to obtain an angle of 30°. (Textbook pg. no. 11)Solution: .In order to get a bisected angle of a given measure, the student has to … Read more

Question 1.Match the following: Measure of the angle Type of the angle i. 180° a. Zero angle ii. 240° b. Straight angle iii. 360° c. Reflex angle iv. 0° d. Complete angle Solution:(i – Straight Angle),(ii – Reflex Angle),(iii – Complete Angle),(iv – Zero Angle). Question 2.The measures of some angles are given below. Write … Read more

Question 1.Look at the figure alongside and name the following:i. Collinear pointsii. Raysiii. Line segmentsiv. Lines Solution: i. Collinear Points Points M, 0 and T Points R, O and N ii. Rays ray OP, ray OM, ray OR, ray OS, ray OT and ray ON iii. Line Segments seg MT, seg RN, seg OP, seg … Read more

Question 1.Compare the following numbers. Solution:i. 7, -2If a and b are positive numbers such that a < b, then -a > -b.Since, 2 < 7 ∴ -2 > -7 Here, the denominators of the given numbers are not the same.LCM of 12 and 16 = 48Alternate method:15 × 16 = 24012 × 7 = … Read more

Question 1.Show the following numbers on a number line. Draw a separate number line for each example. Solution:i. 3/2, 5/2, – 3/2Here, the denominator of each fraction is 2.∴ Each unit will be divided into 2 equal parts. Here, the denominator of each fraction is 5.∴ Each unit will be divided into 5 equal parts. … Read more

Textbook Questions and Answers 1. Search and you will find: Question a.Our galaxy is called ………… .Answer:Our galaxy is called the Milky Way and Mandakini. Question b.For measuring large distances, ………… is used as a unit.Answer:For measuring large distances, the light year is used as a unit. Question c.The speed of light is …………. km/s.Answer:The speed of light … Read more