Question

直接寫數：

7× 3 14 =	3 7 ÷6=	4 5 ÷ 5 4 =	1.6÷0.7=	1÷3× 1 3 =
5 14 ÷ 5 14 =	1 8 ÷ 5 2 =	1 3 ×0.15=	3 7 ÷ 7 8 =	1 2 × 1 3 ÷ 1 3 × 1 2 =

Answer 1

分析：①⑧約分計算；②③⑤⑥⑦⑨把除法改為乘法，再計算；④把被除數和除數分別擴大10倍，寫成分數形式；⑩可先算

1

3

÷

1

3

，再算

1

2

×

1

2

．

解答：

解： 7× 3 14 = 3 2	3 7 ÷6= 1 14	4 5 ÷ 5 4 = 16 25	1.6÷0.7= 16 7	1÷3× 1 3 = 1 9
5 14 ÷ 5 14 =1	1 8 ÷ 5 2 = 1 20	1 3 ×0.15=0.05	3 7 ÷ 7 8 = 24 49	1 2 × 1 3 ÷ 1 3 × 1 2 = 1 4

點評：此題考查了分數的約分計算、乘除法的轉化以及簡算等，根據題目特點，靈活解答．