1. 直接写出得数。
0.4×0.6=
1.2×0.6=
2.3×0.5=
3.1×0.02=
0.32×0.8=
3.7×0.6=
5.7×0.9=
8.5×0.7=
1.8×0.3=
2.4×4=
1.4×0.3=
0.6×0.15=
2.5×0.4=
0.8×0.9=
0.7×0.4=
0.4×0.6=
1.2×0.6=
2.3×0.5=
3.1×0.02=
0.32×0.8=
3.7×0.6=
5.7×0.9=
8.5×0.7=
1.8×0.3=
2.4×4=
1.4×0.3=
0.6×0.15=
2.5×0.4=
0.8×0.9=
0.7×0.4=
答案
0.4×0.6= 0.24
1.2×0.6= 0.72
2.3×0.5= 1.15
3.1×0.02= 0.062
0.32×0.8= 0.256
3.7×0.6= 2.22
5.7×0.9= 5.13
8.5×0.7= 5.95
1.8×0.3= 0.54
2.4×4= 9.6
1.4×0.3= 0.42
0.6×0.15= 0.09
2.5×0.4= 1
0.8×0.9= 0.72
0.7×0.4= 0.28
1.2×0.6= 0.72
2.3×0.5= 1.15
3.1×0.02= 0.062
0.32×0.8= 0.256
3.7×0.6= 2.22
5.7×0.9= 5.13
8.5×0.7= 5.95
1.8×0.3= 0.54
2.4×4= 9.6
1.4×0.3= 0.42
0.6×0.15= 0.09
2.5×0.4= 1
0.8×0.9= 0.72
0.7×0.4= 0.28
2. 列竖式计算。
$3.3×0.15=$
$0.12×2.05=$
$3.14×2.9=$
$0.78×4.5=$
$1.6×1.8=$
$2.8×0.16=$
$3.3×0.15=$
$0.12×2.05=$
$3.14×2.9=$
$0.78×4.5=$
$1.6×1.8=$
$2.8×0.16=$
答案
$3.3×0.15=$ 0.495
$0.12×2.05=$ 0.246
$3.14×2.9=$ 9.106
$0.78×4.5=$ 3.51
$1.6×1.8=$ 2.88
$2.8×0.16=$ 0.448
$0.12×2.05=$ 0.246
$3.14×2.9=$ 9.106
$0.78×4.5=$ 3.51
$1.6×1.8=$ 2.88
$2.8×0.16=$ 0.448
3. 在 ○ 里填上“>”“<”或“=”。
6.5×0.9 ○ 6.5
3.9×1.2 ○ 1.2×3.9
2.4×1.5 ○ 0.24×15
1×0.95 ○ 1×1.2
2.4×1.1 ○ 2.4
0.78×1.4 ○ 1.4
6.5×0.9 ○ 6.5
3.9×1.2 ○ 1.2×3.9
2.4×1.5 ○ 0.24×15
1×0.95 ○ 1×1.2
2.4×1.1 ○ 2.4
0.78×1.4 ○ 1.4
答案
6.5×0.9 ○ 6.5 <
1×0.95 ○ 1×1.2 <
2.4×1.5 ○ 0.24×15 =
2.4×1.1 ○ 2.4 >
3.9×1.2 ○ 1.2×3.9 =
0.78×1.4 ○ 1.4 <
1×0.95 ○ 1×1.2 <
2.4×1.5 ○ 0.24×15 =
2.4×1.1 ○ 2.4 >
3.9×1.2 ○ 1.2×3.9 =
0.78×1.4 ○ 1.4 <
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