АЖ
Алексей Жаринов
Вычислить удобным способом:
4.51·3 1/2 -7 2/3 -(-5.49 · 3 1/2 + 10 1/3 )
4.51·3 1/2 -7 2/3 +5.49· 3 1/2 -10 1/3
4.51·3 1/2+5.49 · 3 1/2 -7 2/3-10 1/3
3 1/2·(4.51+5.49)-(7 2/3+10 1/3)
3,5·10-18=35-18=17
4,51*3 1/2-7 2/3-(-5,49*3 1/2+10 1/3)=
4,51*3 1/2-7 2/3+5,49*3 1/2-10 1/3=
4,51*3 1/2+5,49*3 1/2-7 2/3-10 1/3=
3 1/2(4,51+5,49)-18=
3,5*10-18=
35-18=
17