Lesson 3: Addition
Victor 900 Calculator Teacher’s Guide
10
TRANSPARENCY
Addition
1 + 2 = ?
1 + 3 + 5 = ?
Press these buttons:
The calculator shows:
.ON/AC. 0.
1 +. 1.
2. 2.
=. 3.
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.ON/AC. 0.
1 +. 1.
3. 3.
+. 4.
5. 5.
=. 9.