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Mental maths

In grade 4  we do mental maths every week. To do this what  we need is a piece of mental maths worksheet . On this paper we can find some questions of addition, multiplication, division and subtraction. Our teacher will set the time and what exercise we will do. After 3 minutes or 5 minutes doing the exercises then we need to check  the answers.. It is fun doing it so start doing your mental math now!