-2.7=2.7 6.54+=8 8.41.6=10 9.54.8=4.7
0.35+0.45= 150×6= 0.72-0.28= 0.57+0.9= 101×87=3.8+0.12= 0.6-0.37= 10-0.09= 5÷1000= 0.5×100=