Lời giải:

$100=2^2.5^2$

$120=2^3.3.5$

$\Rightarrow ƯCLN(100,120)=2^2.5=20$

REPEAT 3 [REPEAT 3 [ FD 100 RT 120] PU BK 100 PD]

REPEAT 3 [REPEAT [ FD 100 RT 120 PU BK 100 PD]

REPEAT 3 (REPEAT 3 ( FD 100 RT 120) PU BK 100 PD )

120 : 30 x 100 + 1000 - 100 =?

= 4 x 100 + 1000 - 100

= 400 + 1000 - 100

= 1400 - 100

= 1300

120 : 30 x 100 + 1000 - 100

=     4    x 100 + 1000 - 100

=         400 + 1000 - 100

= 1400 - 100

= 1300

=4x100+1000-100

=400+1000-100

=1400-100

=1300

a)=120+4+120      b)=100-4-4         c)=60+2/5         K NHA MOI NGUOI THANK YOU

=244                  =92                           =302/5

Trả lời

a)120+400:100+120

=120+4+120

=244

b)100-20:5-4

=100-4-4

=92

c)70-10+40:100

=70-10+0,4

=59,6

đáp số 

a) 244

b)92

c)59,6

hok tốt

\(140-100:x=120\)

\(\Leftrightarrow100:x=20\)

hay x=5

  \(120\)\(+\)\(80\)\(=\)\(500\)\(-\)\(x\)                     \(100\)\(+\)\(100\)\(=\)\(400\)\(-\)\(x\)

            \(200\)        \(=\)\(500\)\(-\)\(x\)                              \(200\)           \(=\)\(400\)\(-\)\(x\)

\(500\)\(-\)\(200\)\(=\)\(x\)                                         \(400\)\(-\)\(200\)\(=\)         \(x\)

           \(300\)          \(=\) \(x\)                                                  \(200\)           \(=\)        \(x\)

120 + 80 = 500 - x

200 = 500 - x

x = 300

100 + 100 = 400 - x

200 = 400 - x

x = 200

120 + 80 = 500 - x

100 + 100 = 400 - x

Ta có : 

120 + 80 = 500 - x

=> 500 - x = 200

=> x = 300

Lại có : 

100+100=400-x

=> 400-x = 200

=> x = 200

100: x = 140 -120 => 100: x = 20 => x = 100:20 => x = 5

x+120=552

x=552-120

x=432 nha bạn.

Nhớ k cho mình nha

x + 120 = 452 + 100

x + 120 = 552

x          = 552 - 120

x          = 432

x + 120= 452+100

x+120=552

x= 432

\(x+120=500+100\)

\(x+120=600\)

              \(x=600-120\)

              \(x=480\)

x + 120 = 500 + 100

x + 120 = 600

x          = 600 - 120

x          = 480

x + 120 = 500 + 100

x + 120 = 600

       x   = 600 - 120 

       x   = 480