123 x 145=17835

2564 x 1157=2966548

48541 x 158 =7669478

123456 x 165 =20370240

hi

123 x 145= 17835

2564 x 1157= 2966548

48541 x 158 = 7669478

123456 x 165 = 20370240

~~~hok tốt~~~

123 x 145 = 17 835

2564 x 1157 = 2 966 548

48541 x 158 = 7 669 478

123456 x 165 = 20 370 240

a: \(145+43+\left(-145\right)+57\)

\(=\left(145-145\right)+\left(43+57\right)\)

=0+100

=100

b: \(\left(-123\right)+101+\left(-777\right)+99\)

\(=\left(-123-777\right)+\left(101+99\right)\)

=-900+200

=-700

c: \(\left(-8955\right)+33+\left(-45\right)+\left(-133\right)\)

\(=\left(-8955-45\right)+\left(33-133\right)\)

\(=\left(-9000\right)+\left(-100\right)=-9100\)

d: \(\left(-2\right)+\left(-4\right)+\left(-6\right)+\left(-8\right)+\left(-10\right)+8+10+12\)

\(=\left(12-2\right)+\left(-4-6\right)+\left(-8+8\right)+\left(-10+10\right)\)

=10-10+0+0

=0

45=45

123<213

457<145

45         =        45

123       <        213

457       >        145     

Tick mình nhé Sát thủ giấu tên

123x456456+123123x456=56144088+56144088=112288176

45x48+90x24+145=2160+2160+145=4465

123 . 456456 + 123123 . 456

=123 . 456 . 1001 + 123 . 456 .1001

=123 . 456 . 1001 . 2

=56088 . 2002

=112288176

45 . 48 + 90 . 24 + 145

=45 . 2 . 24 + 90 . 24 + 145

=90 . (24+24) + 145

=90 . 48 + 145

=4320 + 145

=4465

chúc bạn học tốt nha

cảm ơn các bn nhưng mk cần câu trả lời theo cách tính nhanh. thankyou very much. love you

Đáp án B

= -341

a) \(\frac{29566}{435}\)

b) 888,8621648

1000+100+10+1

`a)145×16+145×83+123×22`

`=145xx(16+83)+123xx22`

`=145xx99+123xx22`

`=145xx9xx11+123xx2xx11`

`=1305xx11+246xx11`

`=(1305+246)xx11`

`=1551xx11`

`=`\(17061\)

`145 xx 16 + 145 xx 83 + 123 xx 22`

`=145 xx (16 +83) + 123xx 22`

`=145 xx 99+123xx22`

`=145 xx 9 xx 11+123 xx 21 xx 1`

` =  (1305+246) xx 11`

`=1551 xx 11 =17061`

\(=145\cdot\left(16+83\right)+123\cdot22=145\cdot99+123\cdot22=17061\)