Question

口算． 375+125=	2.2+3.75=	0.23×400=
0.9-0.26=	3 1 12 ×6=	0.25×12=
1.2÷0.01=	35×0.01=	3 4 ×1.2=
6 3 4 +0.25=	2.4-1 1 2 =	2.5+1 1 5 =
5 7 × 4 15 =	5 1 2 - 1 5 =	1 1 9 ÷ 2 3 =
3 2 3 ÷2=	18 6 7 ÷6=	275×99+275=
4 3 4 - 3 8 - 5 8 =	5.38-（1.8+2.38）=

Answer 1

375+125=500	2.2+3.75=5.95	0.23×400=92
0.9-0.26=0.64	3 1 12 ×6=18 1 2	0.25×12=3
1.2÷0.01=120	35×0.01=0.35	3 4 ×1.2=0.9
6 3 4 +0.25=7	2.4-1 1 2 =0.9	2.5+1 1 5 =3.7
5 7 × 4 15 = 4 21	5 1 2 - 1 5 =5 3 10	1 1 9 ÷ 2 3 = 5 3
3 2 3 ÷2= 11 6	18 6 7 ÷6=3 1 7	275×99+275=27500
4 3 4 - 3 8 - 5 8 =3 3 4	5.38-（1.8+2.38）=1.2