ГДЗ по Математике 5 Класс Номер 28 Дорофеев, Шарыгин, Суворова — Подробные Ответы

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

а)
4 ⋅ 4 = 16
8 ⋅ 3 = 24
16 + 24 = 40
Ответ: 40

б)
6 ⋅ 9 = 54
5 ⋅ 4 = 20
54 + 20 = 74
Ответ: 74

в)
9 ⋅ 3 = 27
8 ⋅ 2 = 16
27 + 16 = 43
Ответ: 43

г)
4 ⋅ 8 = 32
7 ⋅ 7 = 49
32 + 49 = 81
Ответ: 81

д)
3 ⋅ 7 = 21
4 ⋅ 9 = 36
21 + 36 = 57
Ответ: 57

е)
6 ⋅ 7 = 42
7 ⋅ 4 = 28
42 + 28 = 70
Ответ: 70