S. K. Gupta Anubhuti Gangal Class 5 Math Eighth Chapter Decimals Exercise 34

S. K. Gupta Anubhuti Gangal Class 5 Math Eighth Chapter Decimals Exercise 34

EXERCISE 34

Round off each decimal to the nearest whole number:

(1) 9.7 = 10

(2) 12.78 = 13

(3) 14.06 = 14

(4) 999.99 = 1000

(5) 110.11 = 110

(6) 62.853 = 63

Round off each decimal to the nearest tenth (1 decimal place):

(7) 4.85 = 4.9

(8) 9.48 = 9.5

(9) 12.53 = 12.5

(10) 111.16 = 111.2

(11) 29.39 = 29.4

(12) 100.01 = 100

Round off each decimal to the nearest hundredth (2 decimal places)

(13) 4.793 = 4.79

(14) 2.847 = 2.85

(15) 16.555 = 16.56

(16) 99.985 = 99.99

(17) 100.005 = 100.01

(18) 6.0025 = 6.00

Round off the decimal number to the nearest thousandth (3 decimal place)

(19) 0.4683 = 0.468

(20) 0.7948 = 0.795

(21) 18.4972 = 18.497

(22) 21.0007 = 21.001

(23) 41.5627 = 41.563

(24) 927.4875 = 927.488

Find the value of:

(25) 3.0468 + 4.6251 + 9.6024 correct to 3 decimal places.

Solution: 17.274 rounded off to 3 decimal places.

(26) 7.8465 + 0.0073 – 1.0263 correct to 2 decimal places.

Solution: 7.8538 – 1.0263 = 6.8275

6.83 rounded off to 2 decimal places.

(27) 5.798 × 0.8 correct to 3 decimal places.

Solution: 5.798 × 0.8 = 4.6384

4.638 rounded off to 3 decimal places.

(28) Find 869.27 × 0.15 correct to

(a) The nearest whole number

Solution: 869.27 × 0.15 = 130.3905

130 rounded off to the nearest whole number.

(b) The nearest tenths.

Solution: 869.27 × 0.15 = 130.3905

130.4 rounded off to the nearest tenths