MoCA Calculation Skills 2

Question 1

On the MoCA serial 7s task, a patient starts at 100 and correctly subtracts 7 three times in a row, then says 79 instead of 79. How many points have they earned so far after the third subtraction?

Accepted Answer

3 points

Answer

Three consecutive correct subtractions (93, 86, 79) each earn 1 point, totaling 3 points at that stage.

Question 2

A patient performing the MoCA serial 7s says: 100, 93, 87, 79, 72. Which subtraction was incorrect?

Accepted Answer

93 minus 7 = 87 (should be 86)

Answer

93 minus 7 equals 86, not 87; that is the error in this sequence.

Question 3

If a MoCA patient answers the serial 7s as 93, 86, 79, 72, 65, what score do they receive?

Accepted Answer

3 points

Answer

Scores of 3 correct = 3 points; all five correct = 3 points maximum since the scale caps at 3.

Question 4

What is 100 minus 7, then minus 7 again?

Accepted Answer

86

Answer

100 − 7 = 93, and 93 − 7 = 86.

Question 5

On the MoCA, if a patient makes one error in the serial 7s but gets the other four correct, what is the likely score?

Accepted Answer

2 points

Answer

MoCA scoring awards 3 pts for 4–5 correct, 2 pts for 2–3 correct, 1 pt for 1 correct, and 0 for none; one error among five means four correct = 3 points — but if only 2–3 are independently correct, it drops; with four correct the score is 3.

(MoCA) Montreal Cognitive Assessment Practice Test

(MoCA) Montreal Cognitive Assessment Practice Test

MoCA Calculation Skills 2