Question

直接寫(xiě)出得數(shù) 6.2×0.1=	0.25×4=	0.9×0.7=
8×0.4+8×2.6=	0.05×0.7=	0.68+0.02=
2.3×0.3=	6×0.8×0.125=	1.3-0.03=
16×0.25=	0.24×0.5=	0.4×0.7×2.5=

Answer 1

解：

6.2×0.1=0.62	0.25×4=1	0.9×0.7=0.63
8×0.4+8×2.6=24	0.05×0.7=0.035	0.68+0.02=0.7
2.3×0.3=0.69	6×0.8×0.125=0.6	1.3-0.03=1.27
16×0.25=0.4	0.24×0.5=0.12	0.4×0.7×2.5=0.7

分析：根據(jù)小數(shù)的乘法、加法和減法的計(jì)算方法進(jìn)行解答，靈活運(yùn)用運(yùn)算定律進(jìn)行簡(jiǎn)算．
點(diǎn)評(píng)：完成小數(shù)加減法題目時(shí)要注意小數(shù)點(diǎn)的對(duì)齊，完成小數(shù)乘法題目時(shí)要注意小數(shù)點(diǎn)位置的變化．