Răspuns :
525 - 187 + 93 - 90 : 9 × 8 + 83 =
525 - 187 + 93 - 10 × 8 + 83 =
525 - 187 + 93 - 80 + 83 =
338 + 93 - 163 =
421 - 163 = 258
163 + 63 - 38 + ( 60 : 10 × 9 - 43 ) + 12 =
163 + 63 - 38 + ( 6 × 9 - 43 ) + 12 =
163 + 63 - 38 + ( 54 - 43 ) + 12 =
163 + 63 - 38 + 11 + 12 =
226 - 38 + 23 =
188 + 23 = 211
22 + 2 × 2 × 2 ÷ 2 + 222 - 22 + 2 × 2 =
22 + 4 × 2 ÷ 2 + 222 - 22 + 4 =
22 + 8 ÷ 2 + 222 - 22 + 4 =
22 + 4 + 222 - 22 + 4 =
26 + 222 - 22 + 4 =
248 - 22 + 4 =
226 + 4 = 230
48 + 82 - 64 ÷ 8 ÷ 2 × 9 + ( 42 ÷ 7 - 6 ) =
48 + 82 - 64 ÷ 8 ÷ 2 × 9 + 0
48 + 82 - 8 ÷ 2 × 9 + 0 =
48 + 82 - 4 × 9 + 0 =
48 + 82 - 36 + 0 =
130 - 36 + 0 =
94 + 0 = 94
coroană?