At mathii.com you can choose the size of the numbers you practice with. The website generates random exercises with your settings.
At some websites you must type in each answer. In order not to disturb your creative flow, at mathii.com you can click to show one answer at a time (or show all answers in one click).
The number of possible settings make this website suitable for many levels.
Have you already tried "NUMBER MEMORY"?
contact: mathiiwebsite@gmail.com
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Settings:
Would you like to practice with fractions?
Yes
No
Always give simplified fractions
Always display in the form
A/B
There is no need to choose one: both can be left unchecked.
Go back to the other tabs to start practicing with your new settings.
A/B
+
C/D
Denominators (B and D) from to
Fraction value between and
No whole numbers
BLIND
GO!
A/B
-
C/D
Denominators (B and D) from to
Fraction value between and
No whole numbers
BLIND
GO!
A/B
x
C/D
Denominators (B and D) from to
Fraction value between and
One whole number
One or both are fractions
No whole numbers
BLIND
GO!
A/B
:
C/D
B, C and D are at most
Left number is whole
the right fraction is smaller than 1.
One or both are fractions
No whole numbers
BLIND
GO!
A + B = C
A and B from to
BLIND
GO!
A - B = C
A and B from to
C non-negative
BLIND
GO!
A x B = C
A from to
B from to
BLIND
GO!
A : B = C
Set bounds for
A
or C
A from to
B from to
C from to
Options for C:
C is a whole number
Calculate C with remainder
Display C as a mixed fraction
Round C off to a maximum of decimal places
BLIND
GO!
A ? B = C
You'll get a mix of exercises with your settings (from the other tabs).
BLIND
GO!
Settings:
Would you like to practice with large numbers with extra zeros?
Yes
No
Display A and B with
a minimum of and
a maximum of zeros added at the end.
Would you like to practice with numbers that have a decimal point?
Yes
No
Move the decimal point of A and B
at least and
at most places to the left.
Go back to the other tabs to start practicing with your new settings.
Train subitizing at least
and at most dots.
screen height = (make the screen square) dot size = viewtime = number of dots x + (milliseconds)
TEST SCREEN SIZE
SET
Remember numbers of
at least and
at most digits.
SET
Give the prime factorization of A.
A from to
BLIND
GO!
gcd(A, B) = C
A and B from 1 to
BLIND
GO!
lcm(A, B) = C
A and B from to
BLIND
GO!
Your settings of LARGE numbers are active.
Your settings of numbers with a decimal POINT are active.