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012_G3U02_WB_CA_˙—» ¿º 2011.4.5 2:48 PM ˘ ` 7 PDF_In 2540DPI 150LPI T

012-B4-1

Order of Numbers
1. Use the number line to find the missing numbers.

Example

2,452 2,453 2,455

a. 1,406 1,407 1,409
1,403 1,404

b. 5,138 5,139 5,140 5,141
5,136

c.

7,425 7,426 7,427 7,428 7,430

d.

2,520 2,521 2,523 2,524 2,525
   32   33   34   35   36   37   38   39   40   41   42