Question

calculeaza efectuand parantezele {[42×(75-100:25)+24]-24:3}×5 28-10:{1+3×[(57-60:4×2):3+21]:10}

Answer 1

{[42×(75-4)+24]-8}×5={[42×71+24]-8}×5={[2982+24]-8}×5={3006-8}×5=2998×5=15090

Answer 2

{[42x(75-100:25 ) + 24] x5}
= {42 x( 75 -4 )+24]x5}
= [( 42x71+24)x5]
= [(2982+24)x5]
= (3016x5)
= 15080

28-10:{1+3x[(57-60:4x2) :3+21]:10}
= 28-10:{1+3x[(57-15x2) : 3 +21] : 10}
= 28 - 10:{1+3x[(57-30) :3+21]:10}
= 28-10:[1+3x(27:3+21):10]
= 28-10: [1+3x(9+21):10]
=28-10:( 1+3x9+21:10)
=28-10:( 1+27+11)
=28-10:39
=28-10
= 18
Sper ca ti-am fost de folos ,  coronita mi-o poti da mie te rooooooog ?