Răspuns:
a) 245 + x = 888
x = 888 - 245
x= 643
y+235= 434
y= 434 - 235
y= 199
z-369= 128
z= 128 + 369
z= 497
b) 122+323 - a = 115
445 - a = 115 -> 445 = 115 + a -> a+115 = 445 -> a= 445 - 115 = 330
122+100 = 124 + b -> 222 = 124 + b -> 124+ b = 222 -> b = 222 - 124 = 98
c - 222 = 321+103 -> c - 222 = 424 -> c = 424 + 222 -> c=646
c) d+7 < 11 -> d < 11-7 -> d < 4
e+28 < 32 -> e < 32 - 28 -> e < 6
f-8 < 4 -> f < 4+8 -> f < 12
g - 36 < 5 -> g < 5 + 36 -> g < 45
Coroana?
