Răspuns:
a) 45:5=9
12+9=21
21-4=17
in afara parantezei>10×17=170 170+5=175
b)3²+3⁵÷3³=18
(3+3)×9=54
54÷57=0,94
c)25×14=350
25×26=650
15×40=600
350+650=1000
650-600=50
cred ca este corect