\(54\times113+45\times113+113=\left(54+45+1\right)\times113=100\times113=11300\)

\(256\times236+256\times256-256=\left(236+256-1\right)\times256=419\times256=125696\)

54 ✖ 113 +45 ✖ 113 + 113 ✖ 1

= 113 ✖ (54+45+1)

=113✖100

=11300

=113 x (54+45)

=113x 99 

= 11187

b, 24x3 - 12x5

=12 x 2x3 - 12x5

=12x6 - 12 x5

=12x(6-5)

=12

Giups mk mấy bài này với nhé!

1.Tính giá trị biểu thức bằng cách hợp lí:

a)54x113+45x113

b)24x3-12x5

a)54x113+45x113

=113*(54+45)

=113*100

=11300

b)24x3-12x5

=12*2*3-12*5

=12*6-12*5

=12*(6-5)

=12*1

=12

a,=4x25x113-5x20x112

=100x113-100x112

=100x(113-112)=100x1=100

b,=113x(54+45+1)=113x100=11300

c,=(266x2x7-266x2x7)x(266x2x7+266)

=0x(266x2x7+266)=0

Sửa đề: 113^2-26*113+13^2

=113^2-2*113*13+13^2

=(113-13)^2

=100^2=10000

\(113^2-26.113+13^2\)

\(=\left(113-13\right)^2\)

\(=100^2\)

\(=10000\)

a) 4x12x25-5x112x20

=100*12-100*112

=100*100=10000

b) 54x113+45x113+113

=113(54+45+1)

=113x100

=11300

c) không rõ đề

d) 1875:2+125:2

=(1875+125)/2

=2000/2

=1000

a; =353120 ; b;11300; c;11270; d,5000

b)  54x113+45x113+113=113x(54+45+1)=113x100=11300

d) 1875:2+125:2=(1875+125) :2=2000:2=1000

:54x113+44x113+226

=113x[54+44]+226

=113x98+226

=11074+226=11300

ủng hộ nha

11300 ti.ck  đi

olm duyệt

54x113 + 44x113 + 226= 54x113 + 44x113 + 2x113 = (54 + 44 + 2)x113 = 100x113=11300