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Learning Task No. 2. Try to solve the following equation.

1) 4 + 8 ÷ 2 - 7 =
2) 12 × 3 - 4 +0 =
3) 12 + 13 - 4 × 5 =
4) 15 - 10 × 2 + 17 =
5) 20 + 5 × 4 ÷ 2 =