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10
0
0
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10
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1
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9
10
11
2
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9
10
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12
3
3
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13
4
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9
10
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14
5
5
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9
10
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15
6
6
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9
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7
7
8
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8
8
9
10
11
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9
9
10
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19
10
10
11
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20

Why does 10 + 0 = 10?

Let's start at 10.

Next, let's count 0 times.

Ready? ... 10. 🙃

That's why 10 + 0 = 10.

Mathgrow

0
1
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9
0
1
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3
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8
9