Question

口算． 8.1÷0.03=	3 5 +3=	5 16 × 8 15 =	7 9 - 1 3 =
8 9 × 9 24 =	134-18=	1.5×4=	7.45+8.55=
25÷ 1 10 =	2.4- 1 2 =	3.5× 5 7 =	3 7 × 2 3 =

Answer 1

8.1÷0.03=270，	3 5 +3=3 3 5 ，	5 16 × 8 15 = 1 6 ，	7 9 - 1 3 = 4 9 ，
8 9 × 9 24 = 1 3 ，	134-18=116，	1.5×4=6，	7.45+8.55=16，
25÷ 1 10 =250，	2.4- 1 2 =1.9，	3.5× 5 7 =2.5，	3 7 × 2 3 = 2 7 ．