Q1)Add
a) 27.5,8.93,0.759,9.6
b)0.83,8.07,17.9,29.4,6.78
Q2) Find the difference
a) 60-18.35
b) 48.3-29.571
c) 215.4-69.845
Q3) Simplify
a) 203.5-43.76-9.89-13.086
Q4) What is to be added to 73.6 to get 91.03?
Q5) What is to be subtracted from 6.1 to get 0.785?
Q6) Arrange in the stated order
a) 5.37,3.57,3.5,5.3,5.7,3.07(Ascending order) b) 6.6,0.06,0.6,0.006,6.66(descending order)
Q7) Convert the following set of unlike decimals into like decimals
a) 0.5, 7.573, 4.26, 8.4
Q8) Convert the following decimals into fractions
a) 0.6
b) 6.05
c) 9.375
Q9) Convert the following fractions into decimals
a) 2003/100
b) 3055/1000 20.5
Please send all the format in writing in notebook.
Answers
27.5
0.759
9.6
8.93
______
46.789
Given,
Q1) a) 27.5,8.93,0.759,9.6
b)0.83,8.07,17.9,29.4,6.78
Q2)a) 60-18.35
b) 48.3-29.571
c) 215.4-69.845
Q3)a) 203.5-43.76-9.89-13.086
Q4) What is to be added to 73.6 to get 91.03?
Q5) What is to be subtracted from 6.1 to get 0.785?
Q6) Arrange in the stated order
a) 5.37,3.57,3.5,5.3,5.7,3.07(Ascending order) b) 6.6,0.06,0.6,0.006,6.66(descending order)
Q7) Convert the following set of unlike decimals into like decimals
a) 0.5, 7.573, 4.26, 8.4
Q8) Convert the following decimals into fractions
a) 0.6
b) 6.05
c) 9.375
Q9) Convert the following fractions into decimals
a) 2003/100
b) 3055/1000 20.5
To find,
Q1) Sum of a) 27.5,8.93,0.759,9.6
b) 0.83,8.07,17.9,29.4,6.78
Q2) Difference of a) 60 and 18.35
b) 48.3 and 29.571
c) 215.4 and 69.845
Q3) To simplify, a)203.5-43.76-9.89-13.086
Q4) Value of number x
Q5) Value of number y
Q6) Ascending and Descending Order of a series of numbers
Q7) Like decimals
Q8) Conversion into fractions
Q9) Conversion into decimals
Solution,
Q1) a) Sum of 27.5,8.93,0.759,9.6
⇒27.5+8.93+0.759+9.6
⇒46.789
b)Sum of 0.83,8.07,17.9,29.4,6.78
⇒0.83+8.07+17.9+29.4+6.78
⇒62.98
Q2) a) Difference between 60 and 18.35
⇒ 60-18.35
⇒41.65
b) Difference between 48.3 and 29.571
⇒48.3-29.571
⇒18.729
c)Difference between 215.4 and 69.845
⇒215.4-69.845
⇒145.555
Q3) a) Simplification of 203.5-43.76-9.89-13.086
⇒203.5-43.76-9.89-13.086
⇒136.764
Q4) Let the number to be added be x,
∴73.6+x=91.03
⇒x=91.03-73.6
⇒x=17.43
Q5) Let the number to be subtracted be y,
∴6.1-y=0.785
⇒-y=-5.315
On cancelling the - sign in LHS and RHS, we get
⇒y=5.315
Q6) a)In ascending order, we get
3.07, 3.5, 3.57,5.3,5.37,5.7
b) In descending order, we get
0.006, 0.06,0.6,6.6,6.66
Q7) a)Like decimal is obtained by adding the number of zeroes in the decimal part based on the highest count,
Since, Highest count = 3
∴ Like decimals of 0.5, 7.573, 4.26, 8.4
⇒0.500,7.573,4.260 and 8.400
Q8) To convert decimals into fractions, we divide the whole number by a factor of 10 based of the number of decimal points.
a) 0.6 =
=
b)6.05=
=
c)9.375=
=
Q9) To convert fractions into decimal, the decimal point is placed in the numerator based of the number of zeroes in the denominator.
a)=20.03
b)=3.055