Sujeet Kumar

Question 1.Carry out the following divisions.i. 4.8÷2ii. 17.5÷5iii. 20.6÷2iv. 32.5÷25Solution:i. 4.8÷2 ii. 17.5÷5 iii. 20.6÷2 iv. 32.5÷25 Question 2.A road is 4 km 800 m long. If trees are planted on both its sides at intervals of 9.6 m, how many trees were planted?Solution:Length of road = 4 km 800 m= 4 × 1000 m … Read more

Question 1.If, 317 × 45 = 14265, then 3.17 × 4.5 = ?Solution:3.17 × 4.5= 14.265 Question 2.If, 503 × 217 = 109151, then 5.03 × 2.17 = ?Solution:5.03 x 2.17= 10.9151 Question 3.i. 2.7 × 1.4ii. 6.17 × 3.9iii. 0.57 × 2iv. 5.04 × 0.7Solution:i. 2.7 × 1.4 = 3.75 ii. 6.17 × 3.9= … Read more

Question 1.Write the proper number in the empty boxes. Solution: Question 2.Convert the common fractions into decimal fractions: ii. 4/5 iii. 9/8 iv. 17/20 v. 36/40 vi. 7/25 vii. 19/200 Question 3.Convert the decimal fractions into common fractions:i. 27.5ii. 0.007iii. 90.8iv. 39.15v. 3.12vi. 70.400Solution:i. 27.5

Question 1.In the table below, write the place value of each of the digits in the number 378.025. Place Hundreds Tens Units Tenths Hundredths Thousandths 100 10 1 1/10 1/100 1/1000 Digit 3 7 8 0 2 5 Place value 300 0/10=0 5/1000= 0.005 Solution: Place Hundreds Tens Units Tenths Hundredths Thousandths 100 10 1 … Read more

Question 1.Write the reciprocals of the following numbers: Question 2.Carry out the following Divisions: Intext Questions and Activities Question 1.Ramanujan’s Magic square. (Textbook pg. no. 28) Obtain and read a biography of the great Indian mathematician Srinivasa Ramanujan.Solution:Sum of the numbers in each row:i. 22 + 12 + 18 + 87 = 139ii. 88 + … Read more

Question 1.Write the reciprocals of the following numbers: Question 2.Carry out the following Divisions: Intext Questions and Activities Question 1.Ramanujan’s Magic square. (Textbook pg. no. 28) Obtain and read a biography of the great Indian mathematician Srinivasa Ramanujan.Solution:Sum of the numbers in each row:i. 22 + 12 + 18 + 87 = 139ii. 88 + … Read more

Question 11.What fractions do the points A and B show on the number lines below? Solution: Question 2.Show the following fractions on the number line: ∴ To represent these fractions on the numbers line, each main unit should be divided into 40 equal sub-units.

Question 1. Question 2. Cost of 1 kg of sugar = Rs 32∴ Cost of 6 kg of sugar = 32 x 6= Rs 192∴ They bought 6 kg sugar altogether and the total money spent on sugar is Rs 192. Intext Questions and Activities Question 1.

Question 1.Convert into improper fractions: Question 2.Convert into mixed numbers:

Question 1.Subtract the numbers in the top row from the numbers in the first column and write the proper number in each empty box: – 6 9 -4 -5 0 +7 -8 -3 3 3 – 6 = -3 8 8 – (-5) = 13 -3 -2 Solution: – 6 9 -4 -5 3 (+3) … Read more