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Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. Fill in the missing numbers:

, 200, 300, , , 600, , , , .

210, 220, , 240, , , , , .

350, , , 380, , , , , .

920, 930, , , , , , , .

180, , 200, , , , , , , .



2. Fill in the missing numbers:

1000, , 800, , 600, , , , , .

490, 480, , 460, , , , , , .

, 240, 230, , , , , , , .

810, 800, , , , , , , , .

630, , 610, , , , , , , , .