you should keep your attention focused on your work when you solve addition and subtraction problems because you might get confused
there are multiplication, subtraction, addition, and division!
Problems involving the addition and subtraction of unlike fractions.
By doing the arithmetic.
You should keep your attention focused on your work at all times - not just when working with addition or subtraction!
There is addition,subtraction,multiplication,division,algerbra equations,and that's it.
pray............ ask your parents and friends..................
I need help, Please help me and others out
There are 4 basic maths operations: addition, subtraction, multiplication and division.
5 x 9 = 45
It was one of the first mechanical calculators and performed addition and subtraction problems dealing with numbers up to 9,999,999
Where the decimal is placed you just have to bring it straight down.