1. 直接写出得数。(20☆)
3.9÷13=
52÷0.1=
0.4×3=
7.44×0=
12.3÷41=
13×0.7=
0.7×20=
0.56×3=
36÷0.2=
0.49÷0.7=
1.3×0.05=
4.7×10=
0.45×0.6=
0.64×0.3=
3.6×0.2=
12.5×8=
4.9÷0.1=
3.3÷0.11=
0.01×102=
0.05×18=
6.3÷0.21=
7.8÷0.2=
0.5×80=
4.5×2=
0.6×17=
2.4÷4=
0.4×2.9=
4.5×0.3=
4.22×0.7=
8×0.25=
0.9×0.8=
3.4÷0.2=
8×0.54=
7.5×0.5=
0.05×7=
4.3×2=
3.46÷0.02=
3.4×0.8=
0.15×0.4=
7.31×0.4=
3.9÷13=
52÷0.1=
0.4×3=
7.44×0=
12.3÷41=
13×0.7=
0.7×20=
0.56×3=
36÷0.2=
0.49÷0.7=
1.3×0.05=
4.7×10=
0.45×0.6=
0.64×0.3=
3.6×0.2=
12.5×8=
4.9÷0.1=
3.3÷0.11=
0.01×102=
0.05×18=
6.3÷0.21=
7.8÷0.2=
0.5×80=
4.5×2=
0.6×17=
2.4÷4=
0.4×2.9=
4.5×0.3=
4.22×0.7=
8×0.25=
0.9×0.8=
3.4÷0.2=
8×0.54=
7.5×0.5=
0.05×7=
4.3×2=
3.46÷0.02=
3.4×0.8=
0.15×0.4=
7.31×0.4=
答案
0.3 520 1.2 0
0.3 9.1 14 1.68
180 0.7 0.065 47
0.27 0.192 0.72 100
49 30 1.02 0.9
30 39 40 9
10.2 0.6 1.16 1.35
2.954 2 0.72 17
4.32 3.75 0.35 8.6
173 2.72 0.06 2.924
0.3 9.1 14 1.68
180 0.7 0.065 47
0.27 0.192 0.72 100
49 30 1.02 0.9
30 39 40 9
10.2 0.6 1.16 1.35
2.954 2 0.72 17
4.32 3.75 0.35 8.6
173 2.72 0.06 2.924
2. 计算下面平行四边形的面积。(单位:cm)(12☆)
(1)
(2)
(3)
(1)
(2)
(3)
答案
(1)208 cm²
(2)250 cm²
(3)30 cm²
(2)250 cm²
(3)30 cm²
3. 按规律写得数。(9☆)
81÷9=9
88.2÷9=9.8
88.83÷9=9.87
88.884÷9=
88.8885÷9=
88.88886÷9=
81÷9=9
88.2÷9=9.8
88.83÷9=9.87
88.884÷9=
88.8885÷9=
88.88886÷9=
答案
9.876 9.8765 9.87654
4. 计算下面各题,能简算的要简算。(9☆)
2.4÷1.5+3.6÷1.5
22.05×0.7÷2.1+0.8
0.25×0.8×0.125×40
用时:分钟
共得:☆/50 ☆
2.4÷1.5+3.6÷1.5
22.05×0.7÷2.1+0.8
0.25×0.8×0.125×40
用时:分钟
共得:☆/50 ☆
答案
4 8.15 1
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