arithmetic

noun
1
the type of mathematics that deals with the adding, multiplying, etc. of numbers
حساب, عملیات ریاضی
2
sums involving the adding, multiplying, etc. of numbers
حساب, محاسبات
a quick bit of mental arithmetic
I think there's something wrong with your arithmetic.
I’ve worked out the price, but I need to check the arithmetic.
a test of mental arithmetic
adjective
1
relating to arithmetic
حسابی, مربوط به حساب