Question

Bài 1:Thựchiệnphéptính:

a)  3.5² + 15.2² – 26:2     b)5³.2 – 100 : 4 + 2³.5     c)6² : 9 + 50.2 – 3³.3

d)3².5 + 2³.10 – 81:3     e)5¹³ : 5¹⁰ – 25.2²g)20 : 2² + 5⁹ : 5⁸

h)100 : 5² + 7.3²            h)84 : 4 + 3⁹ : 3⁷ + 5⁰       i)29 – [16 + 3.(51 – 49)]

mk cần gấp

Answer 1

\(a,=75+60-13=122\\ b,=250-25+40=265\\ c,=4+100-9=95\\ d,=45+80-27=98\\ e,=5^3-100=125-100=25\\ g,=5+5=10\)

Answer 2

a)
=\(3.5.5+3.5.2-13=3.5\left(5+2\right)-13=15.7-13=105-13=92\)
b)
\(=5^3.2-25+2^3.5=5.25-5.5+8.5=5\left(25-5+8\right)=5.28=140\)
c)
\(6^2:9+50.2-3^3.3=36:9+100-3^4\)
=\(4+100-81\)=23

Answer 3

a: \(3\cdot5^2+15\cdot2^2-26:2\)

\(=75+60-13\)

=122

b: \(5^3\cdot2-100:4+2^3\cdot5\)

\(=250-25+40\)

=265

c: \(6^2:9+50\cdot2-3^3\cdot3\)

\(=4+100-9\)

=95