2·02x8·5=2x8.5+8.5x0.02=17+0.17=17.17 1·25+4·6+0·75=1·25+0·75+4·6=6.6 1·6x7·5x1·25=(1.25x8)x(7.5x2)=10x15=15056x1·25=1.25x8x7=703·4x7x1.5=(3.4x5)x7x0.3=17x7x0.3=35.70·8x0·25x0·4x12·5=(0.25x0.4)x(0.8x12.5)=1