Вопрос:

Реши примеры: 9·8; 6·3; 27:3; 5·2; 12:6; 20:4; 40:10; 12:2; 30:5; 35:7; 7·8; 8·6; 9·4; 12:4; 18:3; 72:9; 2·5; 7·7; 8·6; 8·5; 8·8; 10:2; 56:7; 63:7; 35:5; 42:7; 80:5; 54:9; 9·8; 4·3.

Ответ:

9·8 = 72; 6·3 = 18; 27:3 = 9; 5·2 = 10; 12:6 = 2; 20:4 = 5; 40:10 = 4; 12:2 = 6; 30:5 = 6; 35:7 = 5; 7·8 = 56; 8·6 = 48; 9·4 = 36; 12:4 = 3; 18:3 = 6; 72:9 = 8; 2·5 = 10; 7·7 = 49; 8·6 = 48; 8·5 = 40; 8·8 = 64; 10:2 = 5; 56:7 = 8; 63:7 = 9; 35:5 = 7; 42:7 = 6; 80:5 = 16; 54:9 = 6; 9·8 = 72; 4·3 = 12.