Question 1
Ken counts his stickers in 50s: 650, 700, 750, ___
Count in twenties, twenty-fives, fifties and hundreds
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Question 2
Ken counts his stickers in 20s: 680, 700, 720, ___
Question 3
Ken counts his stickers in 25s: 800, 825, 850, ___
Topic quiz
Five questions on this topic, marked at the end. No hints and no answers along the way — that is what makes the result mean something.
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