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029_G1U8_WB_˙—» ¿º 2011.3.28 11:25 AM ˘ ` 2 PDF_In 2540DPI 150LPI T
029-B1-2
2. Use the blocks to write two different subtraction sentences.
Example a.
-= -=
-= -=
b. c.
-= -=
-= -=
d. e.
-= -=
-= -=
029-B1-2
2. Use the blocks to write two different subtraction sentences.
Example a.
-= -=
-= -=
b. c.
-= -=
-= -=
d. e.
-= -=
-= -=
