a

B

Địt mệ hai bạn Han Ngoc và bạn Yuuki inori nứng hả ko bt thì im mệ đik

12,4:0,5+12,4*91+6,1*6+12,4:0,25

=12,4*2+12,4*91+12,4*3+12,4*4

=12,4*(2+91+3+4)

=12,4*100

=1240

a) 12,4 x 72,53 + 27,47 x 12,4

= 12,4×(72,53+27,47)

=12,4×100

=1240

= 12,4 × (72,53 + 27,47)

= 12,4 × 100

= 124

1240

60.49

tik mik nha

1) 12,4x72,53+27,47x12,4

= 12,4x(72,53+27,47)

= 12,4 x 100

=1240

2) 32,42+ 10,49+ 17,58

= (32,42+17,58) + 10,49

= 50 + 10,49

= 60,49

12,4 x 72,53 + 27,47 x 12,4

=12,4x(72,53+27,47)

=12,4x99,99

=1239,876

32,42 +10,49 + 17,58

=(32,42+17,58)+10,49

=50+10,49

=60,49

a,= 12,4 x 2+12,4x8

= 12,4x(2+8)

= 12,4x10

=124

b, = 0,9x95+0,9x2x2+0,9x1

= 0,9x(95+2+2+1)

= 0,9x100

= 90

tick nha bạn

a. =12.4*(2+8) = 12.4*10= 124

b. 0.9* ( 95+4+1 ) =0.9*100= 90

Tick nha!!!!!!!!! Thank you

a,\(12,4\div0,5+12,4\times8\)

\(=12,4\div\frac{1}{2}+12,4\times8=12,4\times2+12,4\times8=12,4\times10=124\)

b,\(0,9\times95+1,8\times2+0,9=0,9\times95+0,9\times4+0,9\)

\(=0,9\times\left(95+4+1\right)=0,9\times100=90\)

a) \(12,4\cdot6\dfrac{1}{4}+\left(-12,4\right)\cdot\left(-2,5\right)^2\)

\(=12,4\cdot\dfrac{25}{4}-12,4\cdot\dfrac{25}{4}=0\)

b) \(32,125-\left(6,325+12,125\right)-\left(37+13,675\right)=32,125-6,325-12,125-37-13,675\)

\(=\left(32,125-12,125\right)-\left(6,325+13,675\right)-37=20-20-37=-37\)

9,6+4,8*50+9,6*74

=9,6+4,8*2*25+9,6*74

=9,6+9,6*25+9,6*74

=9,6*(1+25+74)

=9,6*100

=960

9,6 + 4,8 x 50 + 9,6 x 74 = 960

9,6 + 4,8 x 50 + 9,6 x 74 = 960

\(=9,6\times\left(4,2+2,2+3,6\right)\)

\(=9,6\times10=96\)

[(-9,6) + (+4,5)] + [(+9,6) + (-1,5)] = [(-9,6) + (+9,6)] + [(+4,5) + (-1,5)]

= 0 + 3 = 3