一、按要求写近似数。
精确到个位：
$0.965\approx$ $4.52\approx$ $6.298\approx$
$13.099\approx$ $9.901\approx$ $7.496\approx$
精确到十分位：
$5.34\approx$ $3.202\approx$ $7.776\approx$
$0.085\approx$ $0.984\approx$ $8.429\approx$
精确到百分位：
$0.347\approx$ $30.6008\approx$ $58.001\approx$
$5.899\approx$ $0.406\approx$ $3.6478\approx$

1 5 6 13 10 7 5.3 3.2 7.8 0.1 1.0 8.4 0.35 30.60 58.00 5.90 0.41 3.65

精确到个位：
$0.965\approx1$，$4.52\approx5$，$6.298\approx6$，
$13.099\approx13$，$9.901\approx10$，$7.496\approx7$；
精确到十分位：
$5.34\approx5.3$，$3.202\approx3.2$，$7.776\approx7.8$，
$0.085\approx0.1$，$0.984\approx1.0$，$8.429\approx8.4$；
精确到百分位：
$0.347\approx0.35$，$30.6008\approx30.60$，$58.001\approx58.00$，
$5.899\approx5.90$，$0.406\approx0.41$，$3.6478\approx3.65$

二、计算下面各题,怎样简便就怎样计算。
$13×(130-130÷26)$ $3600-360÷12×30$ $(103+217)÷20×35$
$59×102-118$ $176+112×2-280$ $[520÷(15+11)]×60$

1625 2700 560 5900 120 1200

$13×(130-130÷26)$
$=13×(130-5)$
$=13×125$
$=1625$
$3600-360÷12×30$
$=3600-30×30$
$=3600-900$
$=2700$
$(103+217)÷20×35$
$=320÷20×35$
$=16×35$
$=560$
$59×102-118$
$=59×102-59×2$
$=59×(102-2)$
$=59×100$
$=5900$
$176+112×2-280$
$=176+224-280$
$=400-280$
$=120$
$[520÷(15+11)]×60$
$=[520÷26]×60$
$=20×60$
$=1200$