1. Calculeaza , tinand seama de ordinea efectuarii operatiilor : a). 90-32+12 = , b) . 50-42:7= , c). 55+125-100= , d). 8×5-28:4= , e). 7×10-11= , f). 42+64:8 = , g). 60-3×9+70:10= , h). 36-12:2 =

2. Efectuează:
a). 36:4×2:3 = , b). 6×(12:3) = , c). (12+6):(11-8) = , d). 50:(19-9)= , e). 48:8:3×0=6×6:9:4= , f). 63:9+9×(15-7)= , g). (8×3-21:3)+(54:9×7)= , h). (27+27:3):4+1 = , i). (36-26):10-100:100 =
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