Toán Lớp 6: a.2^3.15+2^3.35
b.[600-(40:2^3+3.5^3)]:5
c.3^2.10^3-[13^2-(5^2.4+2^2.15)].10^3
d.16.12^2-(4.23^2-59.4)
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Toán Lớp 6: a.2^3.15+2^3.35
b.[600-(40:2^3+3.5^3)]:5
c.3^2.10^3-[13^2-(5^2.4+2^2.15)].10^3
d.16.12^2-(4.23^2-59.4)
Mình cần gấp ạ !!!
Comments ( 2 )
=8.(15+35)
=8.50
=400
b)[600-(40:2^3+3.5^3)]:5
=[600-(40:8+3.125)]:5
=[600-(5+375)]:5
=[600-380]:5
=220:5
=44
c)3^2. 10^3-[13^2-(5^2. 4+2^2. 15)].10^3
=9.1000-[169-(25.4+4.15)].1000
=9.1000-[169-(100+60)].1000
=9.1000-[169-160].1000
=9.1000-9.1000
=0
d)16.12^2-(4.23^2-59.4)
=16.144-(4.529-59.4)
=2304-[4.(529-59)]
=2304-[4.470]
=2304-1880
=424