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029_G1U8_WB_˙—» ¿º 2011.3.28 11:25 AM ˘ ` 6 PDF_In 2540DPI 150LPI T
029-B4-2
2. Use the given numbers to write two different addition and subtraction
sentences.
Example a.
3 47
5 23 3+4=7
+=
2+3=5 -=
+=
-=
-= -=
b. c.
2 97 5 83
7+2=9 +=
+= +=
-= -=
-= -=
029-B4-2
2. Use the given numbers to write two different addition and subtraction
sentences.
Example a.
3 47
5 23 3+4=7
+=
2+3=5 -=
+=
-=
-= -=
b. c.
2 97 5 83
7+2=9 +=
+= +=
-= -=
-= -=
