0.6×0.7= 2.4×5= 0.5×7.6= 40×0.45= 0.8×0.4=4.5×5= 3﹣0.54= 0.6×11= 2.4+4.8= 0.45×1000=0.7÷100= 1×3.12= 12.7+4.3= 0.54﹣0.24= 1.25×80=3.6+0.45= 2.5×2.4×0.4= 5﹣0.27﹣1.73= 2.8+3.45+1.2= 0.35+99×0.35=
计算下面各题,能简算的要简算. 102×4.57.8×6.9+2.2×6.95.6×1.25.
70.5×3.7+63×7.05=
8×(125+25)×4.
用你喜欢的方法计算 (1)3.25÷0.25÷0.4(2)8.3×2.6﹣8.3×1.6.
2456+489+544.