x
0
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0
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0
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0
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0
0
1
0
1
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2
0
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4
6
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6
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8
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48
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10
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0
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12
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42
48
54
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66
72
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0
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14
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35
42
49
56
63
70
77
84
8
0
8
16
24
32
40
48
56
64
72
80
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9
0
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18
27
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45
54
63
72
81
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108
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0
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44
55
66
77
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110
121
132
12
0
12
24
36
48
60
72
84
96
108
120
132
144

Why does 1 x 4 = 4?

Because a single 4 is just 4.

That is, because 4 = 4.

Mathgrow

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