Question

2 Calculează: a) 30 +5.24; b) 9•21-10; c) 5•4 +3•9; d) 9: 3•6-1; e) 5•3² +6•2²; f) 7•6 +24:2+5•3.1⁴​

Answer 1

Răspuns:

$a) 30 +5*24=30+120=150\\\\b) 9*21-10=189-10=179\\\\c)5*4 +3*9=20+27=47\\\\d) 9: 3*6-1=18-1=17\\\\e) 5*3^{2} +6*2^{2}=5*9+6*4=45+24=69\\\\f) 7*6 +24:2+5*3*1^{4}=42+12+15=69$