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Use of the First and Second Fingers in Addition
Use of the Thumb in Addition
Adding ThreeDigit Numbers with Zeros
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answer directly answer that proves Arrange the tapes Attach the tapes Burroughs Calculator clear symbol Clear the machine column completed job completing each problem Comptometer control key correction key crank credit balance decimal places decimal point Depress keys Depress the keys depress the motor Depress the repeat digits divisor keys Drill Problems Errors extreme left figure keys finger to depress fingering techniques following steps Give the completed Hand Operated handle or depress index finger job sheets keyboard lower dials minuend motor bar multiplicand non-add key Number the problem Operate the handle Printing Calculator Problem 11 problem a second proper space released remainder Remington Rand repeat key rows of keys second answer second finger space provided Strike the keys subtotal key subtraction subtrahend Take a total Tare Weight THREE-DIGIT NUMBERS total key TOUCH ADDITION touch method trial-divisor dial upper dials usual manner write it directly Write the answer write your name