Вычисли.
1)
28 * 3
47 * 2
84 : 6
78 : 2
96 : 24
65 : 13
2)
4 * 15 : 5
17 * 4 : 34
21 − 34 : 17
14 * (95 : 19)
3)
$\snippet{name: op_column, sign: '+', x: '315', y: '479', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '566', y: '138', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '728', y: '465', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '643', y: '274', z: ' '}$
$\snippet{name: op_column, sign: 'x', x: '183', y: '3', z: ' '}$
$\snippet{name: op_column, sign: 'x', x: '232', y: '4', z: ' '}$
28 * 3 = (20 + 8) * 3 = 20 * 3 + 8 * 3 = 60 + 24 = 84
47 * 2 = (40 + 7) * 2 = 40 * 2 + 7 * 2 = 80 + 14 = 94
84 : 6 = (60 + 24) : 6 = 60 : 6 + 24 : 6 = 10 + 4 = 14
78 : 2 = (60 + 18) : 2 = 60 : 2 + 18 : 2 = 30 + 9 = 39
96 : 24 = 4
65 : 13 = 5
4 * 15 : 5 = 60 : 5 = 12
17 * 4 : 34 = 68 : 34 = 2
21 − 34 : 17 = 21 − 2 = 19
14 * (95 : 19) = 14 * 5 = 70
$\snippet{name: op_column, sign: '+', x: '315', y: '479', z: '794 '}$
$\snippet{name: op_column, sign: '-', x: '566', y: '138', z: '428 '}$
$\snippet{name: op_column, sign: '-', x: '728', y: '465', z: '263 '}$
$\snippet{name: op_column, sign: '+', x: '643', y: '274', z: '917 '}$
$\snippet{name: op_column, sign: 'x', x: '183', y: '3', z: '549 '}$
$\snippet{name: op_column, sign: 'x', x: '232', y: '4', z: '928 '}$
$\snippet{name: long_division, x: 816, y: 6}$
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