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046_G3U03_WB_CA_˙—» ¿º 2011.4.5 3:14 PM ˘ ` 10 PDF_In 2540DPI 150LPI T

046-B5-2

2. Find the rule and write the correct numbers in the blanks.
a. b.

2,549 3,782 1,339 2,867
1,987 3,475 5,846 3,578 4,763 3,339

2,765 3,566 3,488 4,438

c. d.

3,497 1,849 2,486 2,536
5,866 2,964 3,656 1,987 5,974 3,877

1,639 4,968 2,866 3,769
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