NCERT class 6 maths

1. Comparing of number easily step by step
(< greater sign)(< smaller sign)
As we know the next number or after number is always Greater in in whole
number
Right side greater number
Left side smaller numbers Smaller
so 1<2 8<9 75<77
Greater
10<20<30<40<50 and so on…..
Smaller
Same 50>40>30>20>10

2. RULES
Eg. 15,150
1-count the digits more digits makes greater number
So
15 Two digits 15 <150
150 Three digits
Eg. 1500 , 150
four three 150>1500
digits digits

3. More Typical sums
Eg. 001,100
2-Count zero more zero on right side makes the number greater.
001<100
45800,04580
Two zero one zero
Sol. 45800>04580
Zeros”0” on Right side makes value of
numbers.
Zeros”0” left side gives No Effect on
value(except decimals)
Zero on left side
give no value

4. Eg. 12, 21 [If Digits are same and same type only place are exchanged]
3-firstly Compare the Left most digits Greater Left digit makes number Greater .
so. 12<21
1 2 Eg. 5342, 8342
1 < 2 5 < 8
5342<8342
firstly Compare the Left most digits then go next right n. then next right step by step to compare
perfectly.
6584, 6784 3485,3465 4327, 34328
6584<86784 3485>3465 4327<4328
6=6
5<7
8=8
4=4
8>6 7<8

5. 4-firstly Compare the Left most digits then go next right n. then next right step by step to
compare perfectly.
6584, 6784 3485,3465 4327, 34328
6584<86784 3485>3465 4327<4328
Eg. 975482,974561
975482 97456 More example for practice:3408,3804
975482>97456 126249, 125300
6=6
5<7
8=8
4=4
8>6 7<8
9=9
7=7
5=5
8>5
2<6

6. That’s all for this topic
thank you for watching
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