小数乘小数(2) 1. (1) C (2) A (3) C 2. 1.4×0.25=0.14×(2.5) 10.6×0.82=(1.06)×8.2 0.63×0.12=6.3×(0.012) 1.25×0.08=(0.0125)×8 (Puxue.com) 3. 23.5×1.4-23.5=9.4(米) 答:第二天比第一天多修9.4米。 4. (1)0.6×0.6=0.36 (2)0.66×0.66=0.4356 (3)0.666×0.666=0.443556 (4)0.6666×0.6666=0.44435556 (5)0.66666×0.66666=0.4444355556 (6)0.666666×0.666666=0.444443555556 |