SIKORE - Mental Arithmetic

SIKORE can help everyone to improve his mental arithmetic skills. You can easily generate free sheets with arithmetic problems for printing. Or solve the problems online with your browser. The difficulty is freely configurable.

Difficulty:

Advanced:

Number range

result at most

allow negative numbers

Plus / Minus

summand / subtrahend between

and

Multiplication

occurrence

second factor between

and

first factor at most

Division

occurrence

divisor between

and

value of quotient at most

Options for the look of the sheet:

Length of chain

number of problems in a chain

Number of chains

number of chains on a sheet

Notation

connect problems with

Help

as help add

Ornamenation

characters between problems

Level-display

text below the heading

Options for SIKORE live:

Help

clickable results

Time limit

time limit for calculations

Pick one of the above, preconfigured difficulties or click here to show further options for configuration.

Sheet:

Generate sheet

Generate one random sheet with problems for immediate printing.

SIKORE Live:

Calculate now

Create one chain and solve it online now.

Things to know about SIKORE

Every chain with problems spans several lines. At the end of a line the intermediate result is copied to the beginning of the next line and used for the further calculations.
There are five chains on a sheet, e.g. one for every day of the (school-)week.
Use it in many ways: homework, exercise at school, with time limit, hall of fames, ...
SIKORE is my hobby. You may use it free of charge.
By the way, the word SIKORE is an abbreviation of Sicher Kopfrechnen which means reliable mental arithmetic.
Support by PayPal: Send Money to mich or right here:

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	Start Page New Sheet Print Problem Sheet Solution Sheet
	Print (or your browser's print command) prints the sheet shown below. More options: Toggle between problem and solution sheet, generate a new sheet or return to the start page with all options.