Question

180÷60=	12×25=	0÷90=
4×5÷4×5=	0.25×4+4=	131+218+269+182=
25×6×4=	420÷35=	36×5×4=
120÷5÷3=	198-75-25=	120-20÷5=
59亿-58亿=	（1.3+3.5）÷0.6=	75÷2.5=
0.45÷1.25÷8=	2.5×7.6×4=	97.6÷0.02=
8.8-（0.25+0.4）=	0.25+87+0.75=	0.8-0.35×2=
0.1÷0.01×0.1=	9.9+9.9×99=	2.7×3.6+6.4×2.7=
720÷8÷9=	2.9+5.7+2.1=	2-0.16-0.64=
16.7+84.5-16.7=	6.8-（3.8+2.9）=	9×1.3+9×6.7=
5.5-5.25+5.2=	0.8×25-10=	42.8×25×4=
7.2+2.8=	0.9÷0.01=	3.5+7.6=
3×0.2×0.5=	0.96÷0.3=	1.5×0.4=
7÷0.25=	2.5×0.7×0.8=	8-2.5=
16÷1.6=	5.6×1.01=	8×（2.5+0.25）=
0.36+0.64=	64.32÷16=	72.8÷0.8=
8.4×0.2+1.6×0.2=	8.4÷4.2=	0.05×0.8=
2.56-0.37=	1.23×3=	25×0.8×0.5=
12×2.5=	3.2÷1.6=	3.5+3.5×3=
19.6÷2=	8.8÷2.2=	3.9+2.03=
7.2×0.3+2.8×0.3=	13.8+9.9=	2.4×2.5=
0.75×4=	（1.5+0.25）×4=	4.2÷0.1=
4.2÷3.5=	2.14-0.9=	27+456+73=
12÷0.3=	2.87÷0.7=	13÷4=
24÷4+56÷4=	2.1×0.3÷2.1=	2.3-0÷8.1=
1.37-1.37÷1.37=	4.4÷（5×0.2）=	7×1.3=
0.96÷0.06=	0.36×0.3=	0.35÷0.7=
13.65÷13=	4×0.8×0.25×1.25=	13+0.7÷0.7=
7.05×23.7+7.05×76.3=	0.125×3.2×2.5=	（12+23.1÷0.75）×0.4-5.12=
728+199=	637-201=	16×25=
1.6×[（12-7.2）÷（0.84÷2.1）]=

Answer 1

分析：根据整数和小数加法、乘法结合律、交换率、和四则运算定律进行计算，直接得出结果．

解答：

解：180÷60=3	12×25=300	0÷90=0
4×5÷4×5=25	0.25×4+4=5	131+218+269+182=800
25×6×4=600	420÷35=12	36×5×4=720
120÷5÷3=8	198-75-25=98	120-20÷5=116
59亿-58亿=1亿	（1.3+3.5）÷0.6=8	75÷2.5=30
0.45÷1.25÷8=0.045	2.5×7.6×4=76	97.6÷0.02=4880
8.8-（0.25+0.4）=8.15	0.25+87+0.75=88	0.8-0.35×2=0.1
0.1÷0.01×0.1=1	9.9+9.9×99=990	2.7×3.6+6.4×2.7=27
720÷8÷9=10	2.9+5.7+2.1=10.7	2-0.16-0.64=1.2
16.7+84.5-16.7=84.5	6.8-（3.8+2.9）=0.1	9×1.3+9×6.7=72
5.5-5.25+5.2=5.45	0.8×25-10=10	42.8×25×4=4280
7.2+2.8=10	0.9÷0.01=90	3.5+7.6=11.1
3×0.2×0.5=0.3	0.96÷0.3=3.2	1.5×0.4=0.6
7÷0.25=28	2.5×0.7×0.8=1.4	8-2.5=5.5
16÷1.6=10	5.6×1.01=5.656	8×（2.5+0.25）=22
0.36+0.64=1	64.32÷16=4.02	72.8÷0.8=91
8.4×0.2+1.6×0.2=2	8.4÷4.2=2	0.05×0.8=0.04
2.56-0.37=2.19	1.23×3=3.69	25×0.8×0.5=10
12×2.5=30	3.2÷1.6=2	3.5+3.5×3=14
19.6÷2=9.8	8.8÷2.2=4	3.9+2.03=5.93
7.2×0.3+2.8×0.3=3	13.8+9.9=23.7	2.4×2.5=6
0.75×4=3	（1.5+0.25）×4=7	4.2÷0.1=42
4.2÷3.5=1.2	2.14-0.9=1.24	27+456+73=556
12÷0.3=40	2.87÷0.7=4.1	13÷4=3.25
24÷4+56÷4=20	2.1×0.3÷2.1=0.3	2.3-0÷8.1=2.3
1.37-1.37÷1.37=0.37	4.4÷（5×0.2）=4.4	7×1.3=9.1
0.96÷0.06=16	0.36×0.3=0.108	0.35÷0.7=0.5
13.65÷13=1.05	4×0.8×0.25×1.25=1	13+0.7÷0.7=14
7.05×23.7+7.05×76.3=705	0.125×3.2×2.5=1	（12+23.1÷0.75）×0.4-5.12=12
728+199=927	637-201=436	16×25=400
1.6×[（12-7.2）÷（0.84÷2.1）]=19.2

点评：此题考查了整数的加法和减法、整数的乘法及应用、整数的除法及应用、运算定律与简便运算、小数的加法和减法、小数乘法、小数除法．