find the sum of -3 -3 and -3
evaluate 2 $^{6}$
take away +8 from-7
work out 20.5 x 3.5
subtract positive 8 from negative 7
work out 2/3 divided by 2/5
2÷1/4
find the value of 8 take away -10
By reducing in to Echelon form, Find the rank of A= (█(1@-2@-1@-3) █(4@-3@6@3) █(3@-1@7@6) █(-2@4@2@6) █(1@3@9@12))
18+4-3{3+2(3-2)7}
