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1 小华画了一张指示牌，长0.35 m，宽0.28 m，这张指示牌的面积是(
0.098
)m²。答案
0.098
(1) 在下面各题积的合适位置点上小数点。
0.14×0.3= 42
0.19×0.26= 494
0.08×0.12= 96
0.53×0.017= 901
0.14×0.3= 42
0.19×0.26= 494
0.08×0.12= 96
0.53×0.017= 901
答案
0.14×0.3=0.042
0.19×0.26=0.0494
0.08×0.12=0.0096
0.53×0.017=0.00901
0.19×0.26=0.0494
0.08×0.12=0.0096
0.53×0.017=0.00901
（2）根据$36×15=540$，直接写出下列各题的积。
$0.36×0.15=(\quad\quad\quad)$
$3.6×0.015=(\quad\quad\quad)$
$0.036×0.15=(\quad\quad\quad)$
$0.036×0.015=(\quad\quad\quad)$
$0.36×0.15=(\quad\quad\quad)$
$3.6×0.015=(\quad\quad\quad)$
$0.036×0.15=(\quad\quad\quad)$
$0.036×0.015=(\quad\quad\quad)$
答案
0.36×0.15=0.054
3.6×0.015=0.054
0.036×0.15=0.0054
0.036×0.015=0.00054
3.6×0.015=0.054
0.036×0.15=0.0054
0.036×0.015=0.00054
3 用竖式计算。
(1) $1.4×0.07=$
(2) $0.35×0.08=$
(3) $1.6×0.024=$
(4) $0.36×0.11=$
(5) $0.075×0.28=$
(6) $2.9×0.026=$
(1) $1.4×0.07=$
(2) $0.35×0.08=$
(3) $1.6×0.024=$
(4) $0.36×0.11=$
(5) $0.075×0.28=$
(6) $2.9×0.026=$
答案
(1) 0.098
(2) 0.028
(3) 0.0384
(4) 0.0396
(5) 0.021
(6) 0.0754
(2) 0.028
(3) 0.0384
(4) 0.0396
(5) 0.021
(6) 0.0754
