口算0.67+0.3=12×0.5=3.2+1.8=0.8×25-10=54-1=17+15=1-34=35+16+56=12-17=1-45=12-17=16+25=7×1.3+7×6.7=0.87-0.5=2-13=34-12=14-17=34+14=1.4-25=1÷0.25=1114+914=

Question

口算

0.67+0.3=	12×0.5=	3.2+1.8=	0.8×25-10=	(5)/(4)-1=	(1)/(7)+(1)/(5)=	1-(3)/(4)=
(3)/(5)+(1)/(6)+(5)/(6)=	(1)/(2)-(1)/(7)=	1-(4)/(5)=	(1)/(2)-(1)/(7)=	(1)/(6)+(2)/(5)=	7×1.3+7×6.7=	0.87-0.5=
2-(1)/(3)=	(3)/(4)-(1)/(2)=	(1)/(4)-(1)/(7)=	(3)/(4)+(1)/(4)=	1.4-(2)/(5)=	1÷0.25=	(11)/(14)+(9)/(14)=

Answer 1

0.67+0.3=0.97	12×0.5=6	3.2+1.8=5	0.8×25-10=10	(5)/(4)-1=(1)/(4)	(1)/(7)+(1)/(5)=(12)/(35)	1-(3)/(4)=(1)/(4)
(3)/(5)+(1)/(6)+(5)/(6)=1(3)/(5)	(1)/(2)-(1)/(7)=(5)/(14)	1-(4)/(5)=(1)/(5)	(1)/(2)-(1)/(7)=(5)/(14)	(1)/(6)+(2)/(5)=(17)/(30)	7×1.3+7×6.7=56	0.87-0.5=0.35
2-(1)/(3)=1(2)/(3)	(3)/(4)-(1)/(2)=(1)/(4)	(1)/(4)-(1)/(7)= 作业帮用户 2016-12-02 扫描下载二维码 ©2019 作业帮 联系方式：[e-mail]  作业帮协议 (3)/(28)