№28

Вопрос

номер 28

Вопрос

Номер 28.

Найдите значение выражения:

а) 4 ⋅ 4 + 8 ⋅ 3;

б) 6 ⋅ 9 + 5 ⋅ 4;

в) 9 ⋅ 3 + 8 ⋅ 2;

г) 4 ⋅ 8 + 7 ⋅ 7;

д) 3 ⋅ 7 + 4 ⋅ 9;

е) 6 ⋅ 7 + 7 ⋅ 4.

а) 4 ⋅ 4 + 8 ⋅ 3=16+24=40

б) 6 ⋅ 9 + 5 ⋅ 4=54+20=74

в) 9 ⋅ 3 + 8 ⋅ 2=27+16=43

г) 4 ⋅ 8 + 7 ⋅ 7=32+49=81

д) 3 ⋅ 7 + 4 ⋅ 9=21+36=57

е) 6 ⋅ 7 + 7 ⋅ 4=42+28=70