Question

1 2 × 3 4 =	2.5÷ 1 2 =	4 9 ×0.18=	1 2 3 -1 2 3 ÷1 2 3 =
4 5 ÷0.1=	1 4 5 × 5 18 =	3÷1%=	4 7 +1 2 3 + 3 7 =．

Answer 1

1 2 × 3 4 = 3 8 ；	2.5÷ 1 2 =5；	4 9 ×0.18=0.04；	1 2 3 -1 2 3 ÷1 2 3 = 2 3 ；
4 5 ÷0.1=8；	1 4 5 × 5 18 = 1 2 ；	3÷1%=300；	4 7 +1 2 3 + 3 7 =2 2 3 ．