giúp tớ với ạ tớ cảm ơn

Đáp án:

Giải thích các bước giải:

 `a)`

`5^2*11+5^2*19`

`=5^2*(11+19)`

`=5^2*30`

`=25*30`

`=750`

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 `b)`

`549-146-27`

`=400-27`

`=96`

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 `c)`

`115*63+37*115`

`=115*(63+37)`

`=115*100`

`=11500`

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 `d)`

`6^5:6^3+2^2*2^3-3^4:3^2`

`=6^2+2^5-3^2`

`=36+32-9`

`=59`

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 `e)`

`4*2^3+5^6:5^2-27^2:3^5`

`=2^2*2^3+5^4-3^6:3^5`

`=2^5+5^4-3`

`=32+635-3`

`=654`

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 `f)`

`16*6^3+16*4^3-5*12`

`=16*(6^3+4^3)-5*12`

`=16*280-60`

`=4480-60`

`=4420`