Question

直接写出得数 53+98=	634-298=	2.4÷0.04=	125×8=	640÷16=
6÷ 3 5 =	1.29-0.18=	13-7.2-2.8=	3 8 ×24=	1 7 + 6 7 =
0.25×0.4=	1 2 - 1 3 =	0.88+0.12=	6.5+9.75+3.5=	5 9 ×21+ 4 9 ×21=
( 2 3 - 3 8 )×24=

Answer 1

分析：按照整数、分数、小数的四则运算的方法正确计算．

解答：

53+98=151	634-298=336	2.4÷0.04=60	125×8=1000	640÷16=40
6÷ 3 5 =10	1.29-0.18=1.11	13-7.2-2.8=3	3 8 ×24=9	1 7 + 6 7 =1
0.25×0.4=0.1	1 2 - 1 3 = 1 6	0.88+0.12=1	6.5+9.75+3.5=19.75	5 9 ×21+ 4 9 ×21=21
( 2 3 - 3 8 )×24=7

点评：此题考查整数、分数、小数的四则运算．