Question

53+98=	634-298=	2.4÷0.04=	125×8=	640÷16=
6÷=	1.29-0.18=	13-7.2-2.8=	=	=
0.25×0.4=	=	0.88+0.12=	6.5+9.75+3.5=	=
=

Answer 1

53+98=151	634-298=336	2.4÷0.04=60	125×8=1000	640÷16=40
6÷=10	1.29-0.18=1.11	13-7.2-2.8=3	=9	=1
0.25×0.4=0.1	=	0.88+0.12=1	6.5+9.75+3.5=19.75	=21
=7

分析：按照整数、分数、小数的四则运算的方法正确计算．
点评：此题考查整数、分数、小数的四则运算．