16 + 3 =, 4 + 12 =, 5 + 10 =, 9 - 7 =, 18 -6 = , 17 - 4 =, 5 + 5 +4 =, 16 - 3 - 2 =, 17 - 5 + 4 =, 19 - 6 + 5 =, 6 + 3 - 4 + 10 =, 18 + 2 - 10 + 4 =, ☐ + 4 = 8, ☐ + 15 = 17, 19 + ☐ = 20, 6 + ☐ = 10, ☐ - 5 = 5, ☐ - 3 = 17, 16 - ☐ = 13, 8 - ☐ = 1.

Zbrajanje i oduzimanje do 20 (bez prijelaza)

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