How is using mental math to add with decimals like using mental math to add whole numbers

Well, they are the same kind of because if you say 20.4+7.3 lets round it 20.4 would round to 20 and 7.3 would round to 7 so 20+7=27.

Rounding whole numbers would be 25+ 62, 25 would round to 30 and 62 would round to 60, so 30+60= 90  Exact 25+62= 87, which is really close. :) They are really the same because you are just rounding and you can round by tenths while you can't for whole number. Whole number are much easier.

Hope I helped :-)

i can

explanation:

atman means 'eternal self'. the atman refers to the real self beyond ego or false self. it is often referred to as 'spirit' or 'soul' and indicates our true self or essence which underlies our existence.

there are many interesting perspectives on the self in hinduism ranging from the self as eternal servant of god to the self as being identified with god. the understanding of the self as eternal supports the idea of reincarnation in that the same eternal being can inhabit temporary bodies.

the idea of atman entails the idea of the self as a spiritual rather than material being and thus there is a strong dimension of hinduism which emphasises detachment from the material world and promotes practices such as asceticism. thus it could be said that in this world, a spiritual being, the atman, has a human experience rather than a human being having a spiritual experience.

explanation: