Hundreds | Tens | Ones | Tenths |
(100) | (10) | (1) | (1 / 10) |
Rows | Hundreds | Tens | Ones | Tenths |
a | 0 | 3 | 1 | 2 |
b | 1 | 1 | 0 | 4 |
Hundreds | Tens | Ones | Tenths | |
19.4 | 0 | 1 | 9 | 4 |
0.3 | 0 | 0 | 0 | 3 |
10.6 | 0 | 1 | 0 | 6 |
205.9 | 2 | 0 | 5 | 9 |
4. Write each of the following as decimals:
(a) 5 / 10 (b) 3 + 7 / 10 (c) 200 + 60 + 5 + 1 / 10 (d) 70 + 8 / 10 (e) 88 / 10 (f) (g) 3 / 2 (h) 2 / 5 (i) 12 / 5 (j) (k) Solutions: (a) 5 / 10 = 0.5 (b) 3 + 7 / 10 = 3 + 0.7 = 3.7 (c) 200 + 60 + 5 + 1 / 10 = 265 + 0.1 = 265.1 (d) 70 + 8 / 10 = 70 + 0.8 = 70.8 (e) 88 / 10 = 80 / 10 + 8 / 10 = 8 + 0.8 = 8.8(f)
(g) 3 / 2 = (2 + 1) / 2 = 2 / 2 + 1 / 2 = 1 + 0.5 = 1.5 (h) 2 / 5 = 0.4 (i) 12 / 5 = (10 + 2) / 5 = 10 / 5 + 2 / 5 = 2 + 0.4 = 2.45. Write the following decimals as fractions. Reduce the fraction to the lowest form.
(a) 0.6 (b) 2.5 (c) 1.0 (d) 3.8 (e) 13.7 (f) 21.2 (g) 6.4 Solutions: (a) 0.6 = 6 / 10 = 3 / 5 (b) 2.5 = 25 / 10 = 5 / 2 (c) 1.0 = 1 = 1 (d) 3.8 = 38 / 10 = 19 / 5 (e) 13. 7 = 137 / 10 (f) 21.2 = 212 / 10 = 106 / 5 (g) 6.4 = 64 / 10 = 32 / 5 6. Express the following as cm using decimals. (a) 2 mm (b) 30 mm (c) 116 mm (d) 4 cm 2 mm (e) 162 mm (f) 83 mm Solutions: We know that 1 cm = 10 mm 1 mm = 1 / 10 cm (a) 2 mm = 2 / 10 cm = 0.2 cm (b) 30 mm = 30 / 10 cm = 3.0 cm (c) 116 mm = 116 / 10 cm = 11.6 cm (d) 4 cm 2 mm = [(4 + 2 / 10)] cm = 4.2 cm (e) 162 mm = 162 / 10 cm = 16.2 cm (f) 83 mm = 83 / 10 cm = 8.3 cm7. Between which two whole numbers on the number line are the given numbers lie?
Which of these whole numbers is nearer the number?CBSE Board Exam Centre List 2024
Exercise 8.2 Page No. 173 1. Complete the table with the help of these boxes and use decimals to write the number.Rows | Ones | Tenths | Hundreds | Number |
(a) | 0 | 2 | 6 | 0.26 |
(b) | 1 | 3 | 8 | 1.38 |
(c) | 1 | 2 | 8 | 1.28 |
Rows | Hundreds | Tens | Ones | Tenths | Hundredths | Thousandths |
100 | 10 | 1 | 1 / 10 | 1/ 100 | 1 / 1000 | |
(a) | 0 | 0 | 3 | 2 | 5 | 0 |
(b) | 1 | 0 | 2 | 6 | 3 | 0 |
(c) | 0 | 3 | 0 | 0 | 2 | 5 |
(d) | 2 | 1 | 1 | 9 | 0 | 2 |
(e) | 0 | 1 | 2 | 2 | 4 | 1 |
3. Write the following decimals in the place value table.
(a) 0.29 (b) 2.08 (c) 19.60 (d) 148.32 (e) 200.812 Solutions: (a) 0.29 = 0.2 + 0.09 = 2 / 10 + 9 / 100 (b) 2.08 = 2 + 0.08 = 2 + 8 / 100 (c) 19.60 = 19 + 0.60 = 10 + 9 + 6 / 10 (d) 148.32 = 148 + 0.3 + 0.02 = 100 + 40 + 8 + 3 / 10 + 2 / 100 (e) 200.812 = 200 + 0.8 + 0.01 + 0.002 = 200 + 8 / 10 + 1 / 100 + 2 / 1000Hundreds | Tens | Ones | Tenths | Hundredths | Thousandths |
0 | 0 | 0 | 2 | 9 | 0 |
0 | 0 | 2 | 0 | 8 | 0 |
0 | 1 | 9 | 6 | 0 | 0 |
1 | 4 | 8 | 3 | 2 | 0 |
2 | 0 | 0 | 8 | 1 | 2 |
5. Write each of the following decimals in words.
(a) 0.03 (b) 1.20 (c) 108.56 (d) 10.07 (e) 0.032 (f) 5.008 Solutions: The following are the decimals in words (a) 0.03 = zero point zero three (b) 1.20 = one point two zero (c) 108.56 = one hundred eight point five six (d) 10.07 = ten point zero seven (e) 0.032 = zero point zero three two (f) 5.008 = five point zero eight 6. Between which two numbers in tenths place on the number line does each of the given number lie? (a) 0.60 (b) 0.45 (c) 0.19 (d) 0.66 (e) 0.92 (f) 0.57 Solutions: (a) 0.60 lies between 0 and 0.1 in tenths place (b) 0.45 lies between 0.4 and 0.5 in tenths place (c) 0.19 lies between 0.1 and 0.2 in tenths place (d) 0.66 lies between 0.6 and 0.7 in tenths place (e) 0.92 lies between 0.9 and 1.0 in tenths place (f) 0.57 lies between 0.5 and 0.6 in tenths place 7. Write as fractions in the lowest terms. (a) 0.60 (b) 0.05 (c) 0.75 (d) 0.18 (e) 0.25 (f) 0.125 (g) 0.066 Solutions: (a) 0.60 = 60 / 100 = 6 / 10 = 3 / 5 (b) 0.05 = 5 / 100 = 1 / 20 (c) 0.75 = 75 / 100 = 3 / 4 (d) 0.18 = 18 / 100 = 9 / 50 (e) 0.25 = 25 / 100 = 1 / 4 (f) 0.125 = 125 / 1000 = 1 / 8 (g) 0.066 = 66 / 1000 = 33 / 500CBSE Syllabus Class 6 | |
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