December 2020
Intermediate to advanced
255 pages
9h 16m
English
Content preview from Pearson IIT Foundation Class 6 Mathematics by Pearson
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Chapter 3
3.6
Addition and Subtraction of Decimals
Decimal numbers are added and subtracted one from the other in the following way.
(i) 23.43 (ii) 24.56
+34.25 –12.23
57.68 12.33
When we add two decimal numbers or subtract one decimal number from the other, we
have to ensure that the digit in the units place of the second number is written exactly
below the digit in the units place of the rst number. Same is the case with digits in the
100’s place, 1000’s place, 1/10th place, 1/100th place and so on.
NOTE
Multiplication and Division of Decimal Numbers
We shall begin with simpler examples.
(i) (0.3) (0.7) =
3
10
7
10
21
100
021
⎛
⎝
⎜
⎞
⎠
⎟
⎛
⎝
⎜
⎞
⎠
⎟
==.
(ii) ...
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