Addition
5 + 4 =
9
5 - 3 =
2
3 + 3 + 3 + 3 =
12
Which way do columns go?
Up and Down
10 + 8 =
18
15 - 5 =
10
5 + 5 + 5 =
15
Which way do rows go?
Side to Side
15 + 8 =
23
17 - 8 =
9
2 + 2 + 2 + 2 + 2 + 2 =
12
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How many rows do I have?
2
23 + 23 =
46
23 - 15 =
8
4 + 4 + 4 + 4 =
16
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How many columns do I have?
4
345 + 200 =
545
550 - 50 =
500
10 + 10 =
20
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What is the repeated addition for rows in my array?
4 + 4 = 8