Question

5×4=	18×6=	1.73+2.07=
10-0.8=	500÷5=	1 2 + 1 2 =
2 3 - 1 3 =	1 5 + 1 4 =	3 4 - 1 2 =
1 6 - 1 7 =

Answer 1

分析：根据整数、分数加减乘除法的计算方法进行解答即可．

解答：解：

5×4=20	18×6=108	1.73+2.07=3.8
10-0.8=9.2	500÷5=100	1 2 + 1 2 =1
2 3 - 1 3 = 1 3	1 5 + 1 4 = 9 20	3 4 - 1 2 = 1 4
1 6 - 1 7 = 1 42

点评：此题考查了整数、分数加减乘除法的口算能力．