Question

Calculați :
a)14,8:2-(1,5+59:10)+0,25•1,6
b) 3•(2 la 5 + 2 la 4 -2 la 3 ) +25la 10 -(5la5)la 4 ] : ( 3 la100 - 2 la 100 ) =
b) 12+7,4•[0,3+2•(14•2-7•4)+21]-155,06
c) 12 la 3+2 la 7-2000+1 la 18
d) 2•10+10•{30+2•102:[70-48•10:(9•10-40:4)]}
e) 14,8:2-(1,5+59:10)+0,25•1,6

Answer 1

7.4-7.4+0.4=0.4

3*[(2⁵+2⁴-2³)+25¹⁰-(5⁵)⁴]:(3¹⁰⁰-2¹⁰⁰)=3*2³(4+2-1):(3¹⁰⁰-2¹⁰⁰)=2³*3*5:(3¹⁰⁰-2¹⁰⁰

12+7.4[.3+2*0+21]-155.06=12+7.4*63-155.06=478.2-155.06=323.14

12³+2⁷-2000+1¹⁸=1728+128-2000+1=-143

20+10*[30+2*102:(70-6)]=20+10*(30+2*102:64) ceva nu e bine

7.4-7.4+0.4=0.4