直接写出得数.2.5+0.7= 7.9﹣0.6= 8+4.54= 37.8﹣12.8=3.02+6.98= 8﹣4.54= 10﹣0.7= 12.63+0.7=3.28+5.72= 6.79﹣3.09= 3.25+5= 1.65﹣6=
2.5÷[(17.2-4.5×3.6)÷0.04] 4.5÷0.25-0.75×1.2
(66-32×1.2)÷0.25 12.5×(1618-8.4÷0.12)
(7.2-3.15)÷0.6×1.3 96.5×43.5+43.5×28.5-25×43.5
8.1×1.3-8×1.3+1.9×1.3+11.9÷1.36 [(7.6-5.2)÷0.4+2.54]×32
2.9×1.4+2×1.6 (2.44-1.8)÷0.4×20