2024年4月2日发(作者：上海初一数学试卷期末)

Canadian Math Kangaroo Contest team

Canadian Math Kangaroo Contest Part A: Each correct answer is worth 3 points

has 10 rubber stamps. Each stamp has one of the digits:

0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

She prints the date of St. Patrick’s Day 2018:

How many different stamps does she use?

(A) 5

(B) 6 (C) 7 (D) 9 (E) 10

picture shows three flying arrows and nine fixed

balloons. When an arrow hits a balloon, it bursts,

and the arrow flies further in the same direction.


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