so what is decimals?
decimals = A decimal is any number in our base-ten number system The decimal point is used to separate the ones place from the tenths place in decimals
types of decimals
Terminating decimal numbers = These decimal numbers have a finite number of digits after the decimal point
Non - terminating decimal numbers = Recurring Decimal Numbers = Non -recurring decimal numbers
like decimal = the decimals having the same number of decimal places are called like decimals
unlike decimal = the decimals having not the same number of decimals places are called unlike decimals
Decimal Fraction- It represents the fraction whose denominator in powers of ten
now lets understand the places of decimals
u t h th
0. 0 4 4
now lets convert decimals into fractions
0.0057 = 57/10000 as 57 also has two places
0.134 = 134/1000 as 134 as three place
0.2 = 2/10 as 2 has a place too
1.444 = 1444/1000 as 444 has three places
convert decimal to fractions
124/1000 = 0.124
34/10 = 3.4
45/1000 = 0.045
89/100 = 0.89
now lets place decimals in a numberline and compare decimals
0.8 and 0.1
* *
0--0.1--0.2--0.3--0.4--0.5--0.6--0.7--0.8--0.9--1
now lets compare decimals
use =,<,>
0.024 < 0.24 this is because 0.24 has endless zeroes going after it while 0.024 has a 0 before it making the number smaller
now we learn to add or subtract
5.9 - 4.02 =
so first we make the decimals like fraction 5.90 - 4.02 =1.88
same with addition like
4.32+ 3.600 = 7.920
now its all about understanding the word problems
