Odpowiedź:
a)21+2×2×(30-7)=21+4×23=21+92=113
b)2×(9×8-2×16)-(45-30):3=2×(72-32)-15:3=2×40-5=80-5=75
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Verified answer
Odpowiedź:
a)21+2×2×(30-7)=21+4×23=21+92=113
b)2×(9×8-2×16)-(45-30):3=2×(72-32)-15:3=2×40-5=80-5=75