Question

5．口算．

0.16×5﹦	1.78+2.2=	1.2×0.5-0.4=	1.6+2.4×0.3=
2.5×0.4=	1.25×8=	12-3.97=	5.37×0+4.63=

Answer 1

分析 根据小数加减乘除法运算的计算法则计算即可求解．

解答 解：

0.16×5﹦0.8	1.78+2.2=3.98	1.2×0.5-0.4=0.2	1.6+2.4×0.3=2.32
2.5×0.4=1	1.25×8=10	12-3.97=8.03	5.37×0+4.63=4.63

点评 考查了小数加减乘除法运算，关键是熟练掌握计算法则正确进行计算．