Вычисли устно и запиши ответ

a)

1. \(14\cdot4=\) [ ]
   .
2. \(12\cdot6= \) [ ]
   .
3. \(5\cdot13=\) [ ]
   .
4. \(6\cdot15=\) [ ]
   .
5. \(13\cdot7=\) [ ]
   .
6. \(17\cdot3=\) [ ]
   .
7. \(8\cdot12=\) [ ]
   .
8. \(4\cdot16=\) [ ]
   .
9. \(14\cdot6=\) [ ]
   .
10. \(15\cdot3=\) [ ]
    .
11. \(5\cdot18=\) [ ]
    .
12. \(8\cdot15=\) [ ]
    .

б)

1. \(80 : 5=\) [ ]
   .
2. \(90 : 5=\) [ ]
   .
3. \(60 : 5=\) [ ]
   .
4. \(70 : 5=\) [ ]
   .
5. \(32 : 2=\) [ ]
   .
6. \(42 : 3=\) [ ]
   .
7. \(36 : 2=\) [ ]
   .
8. \(45 : 3=\) [ ]
   .
9. \(52: 2=\) [ ]
   .
10. \(75:3=\) [ ]
    .
11. \(98:2=\) [ ]
    .
12. \(92:4=\) [ ]
    .

в)

1. \(13\cdot8=\) [ ]
   .
2. \(92 : 4=\) [ ]
   .
3. \(7\cdot15=\) [ ]
   .
4. \(70 : 5 =\) [ ]
   .
5. \(13\cdot4=\) [ ]
   .
6. \(54 : 3=\) [ ]
   .
7. \(7\cdot12=\) [ ]
   .
8. \(34 : 2=\) [ ]
   .
9. \(16\cdot5=\) [ ]
   .
10. \(64 : 4=\) [ ]
    .
11. \(5\cdot19=\) [ ]
    .
12. \(85 : 5=\) [ ]
    .