Minimal focus mode

Practice

Minimal RPN fluency drills

Work through one canonical RPN sequence at a time. Accuracy comes first, speed comes second.

Time

60

State

ready

Correct

0

Mistakes

0

Streak

0

readyidle

0

endmdyx

RP

12C

t 0
z 0
y 0
x 0
AMORT
INT
NPV
RND
IRR
PRICE
YTM
SL
SOYD
DB
P/R
Sigma
PRGM
CLEAR FIN
REG
PREFIX
curatedintroenter / simple-arithmetic

Enter Then Add

Add 12 and 3 using ENTER separation.

Expected rhythm

12ENTER3+

Your input

Start the drill from the calculator or keyboard.

Up Next

Generated Percent

Find 18% of 80.

Percent of Total

Find 15 percent of 200.

Generated Add

Add 2 and 11.

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