Question

I Fill in the blanks:
1) The number of decimal places (1.4)3 have _______________.
2) In 23.478 , 478 is called _________ part.
3) The fractions whose denominators are 10,100,1000 are called ____________.
4) Decimals having different number of decimal places are called ________________.
5) 25.666,3.246,1.987 are the examples of _____________ decimals.

II Solve the following:
1) Find the sum
a) 6.75,4.3,2.913
b) 0.872,3.46,4.009,4.17
c) 26.23,4,0.003,9.01
d) 643.175,25.2,6.04,5143.7004
e) 213+2.013+0.213+2.0013
2) Multiply:
a) 0.0000078 x1000
b) 357.126 x 10000
c) 0.678 x 860
d) 0.0095 x 81.7
e) 49.87 x 100 3)Subtract:
a) 17.182 from 360.05
b) 0.011 from 1.1
c) 0.0093 from 0.045
d) 17.123 from 73.1
e) 0.03 from 0.47
4) Simplify:
a) 11.001 - 2.36 + 4.965 -5.7
b) 4.346 - 1.16 + 3.402 - 2.3
c) 1.564 - 0.500 + 3.001 - 2.500
5) Find:
i) 3 x 0.3 x 0.03 x 0.003 x 3000
ii) 0.05 x 5 - 0.005 x 5
6) One inch= 2.54cm . how many centimeters are there in 100 inches ?
7) Compare using < ,>
15.7 - 6.4 _______ 3.28 + 5.91

Answer 1

Step-by-step explanation:

I Fill in the blanks:

1) The number of decimal places (1.4)3 have _______________.

2) In 23.478 , 478 is called _________ part.

3) The fractions whose denominators are 10,100,1000 are called ____________.

4) Decimals having different number of decimal places are called ________________.

5) 25.666,3.246,1.987 are the examples of _____________ decimals.

II Solve the following:

1) Find the sum

a) 6.75,4.3,2.913

b) 0.872,3.46,4.009,4.17

c) 26.23,4,0.003,9.01

d) 643.175,25.2,6.04,5143.7004

e) 213+2.013+0.213+2.0013

2) Multiply:

a) 0.0000078 x1000

b) 357.126 x 10000

c) 0.678 x 860

d) 0.0095 x 81.7

e) 49.87 x 100 3)Subtract:

a) 17.182 from 360.05

b) 0.011 from 1.1

c) 0.0093 from 0.045

d) 17.123 from 73.1

e) 0.03 from 0.47

4) Simplify:

a) 11.001 - 2.36 + 4.965 -5.7

b) 4.346 - 1.16 + 3.402 - 2.3

c) 1.564 - 0.500 + 3.001 - 2.500

5) Find:

i) 3 x 0.3 x 0.03 x 0.003 x 3000

ii) 0.05 x 5 - 0.005 x 5

6) One inch= 2.54cm . how many centimeters are there in 100 inches ?

7) Compare using < ,>

15.7 - 6.4 _______ 3.28 + 5.91