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Lesson 10: Memory
Victor 900 Calculator Teacher’s Guide
45
TEACHER’S GUIDE
Lesson 10: Memory
Overview Use the calculator to add and subtract numbers and
store the numbers in the calculator’s memory
Teacher Materials “Calculator Memory”, “Adding Products with Memory”,
and “Find the Total Cost Using Memory”,
transparencies.
Student Materials Pencil, Calculator, and “Million Memory Magic”
worksheet.
Keys Introduced MRC . M+. M-.
Teaching Notes Talk to the students about memory, and how it works
on a calculator. The memory icon will appear on the
calculator screen when a number has been stored.
To view the stored number, press the MRC button
once. MRC stands for “Memory Recall & Clear”. If
the MRC key is pressed twice, the memory is cleared.
M+. Adds the displayed number to the memory of the
calculator
M-. Subtracts the displayed number from the memory
of the calculator
MRC. Displays the number from the memory onto
the screen of the calculator
MRC. MRC. Clears the memory
The Million Memory Magic worksheet is for students
to practice using the memory function of the
calculator. It is to be done individually to test the skills
learned in the lesson. Understanding this worksheet
will show fulfillment and accomplishment with this
lesson.
You should ask students to press the MRC key twice
before the exercise … to make sure everyone starts
with a clear memory.