Chapter 8 Decimals Exercise 8.2
Question 1: Complete the table with the help of these boxes and use decimals to write the number.
Answer:
Question 2: Write the numbers given in the following place value table in decimal form.
Answer:
a) 3 + 0.2 + 0.05 = 3.25
b) 100 + 0 + 2 + 0.6 + 0.03 = 102.63
c) 30 + 0.02 + 0.005 = 30.025
d) 200 + 10 + 1 + 0.9 + 0.002 = 211.902
e) 10 + 2 + 0.2 + 0.04 + 0.001 = 12.241
Question 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
Answer:
Question 4: Write each of the following as decimals.
a) 20 + 9 + 4/10 + 1/100
b) 137 + 5/100
c) 7/10 + 6/100 + 4/1000
d) 23 + 2/10 + 6/1000
e) 700 + 20 + 5 + 9/100
Answer:
a) 29 + 0.4 + 0.01 = 29.41
b) 137 + 0.05 = 137.05
c) 0 + 0.7 + 0.06 + 0.004 = 0.764
d) 23 + 0.2 + 0.006 = 23.206
e) 725 + 0.09 = 725.09
Question 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
Answer:
a) Zero point zero three
b) One point two zero
c) One hundred eight point five six
d) Ten point zero seven
e) Zero point zero three two
f) Five point zero zero eight
Question 6: Between which two numbers in tenths place on the number line does each of the given number lie?
a) 0.06
b) 0.45
c) 0.19
d) 0.66
e) 0.92
f) 0.57
Answer:
a) 0 and 0.1
b) 0.4 and 0.5
c) 0.1 and 0.2
d) 0.6 and 0.7
e) 0.9 and 1.0
f) 0.5 and 0.6
Question 7: Write as fractions in lowest terms.
a) 0.60
b) 0.05
c) 0.75
d) 0.18
e) 0.25
f) 0.125
g) 0.066
Answer:
a) 6/10 = 3/5
b) 5/100 = 1/20
c) 75/100 = 3/4
d) 18/100 = 9/50
e) 25/100 = 1/4
f) 125/1000 = 1/8
g) 66/1000 = 33/500
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