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100, 200, 300, 400, ____, ____, ____, ___. 2-1. 200, 300, 400, 500, ___, ____, ___, ____. 2-2. 310, 320, 330, 340, ___, ___, ___, ___. 2-3. 130, 140, 150, 160 ___, ___, ___, ___. 2-4. 740, 750, 760, 770, ___, ___, ___, ___. 2-5. 100, 150, 200, 250 ___, ___, ___, ___. 3-1.
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