一、直接写出得数。
500÷0.1 = 0.75×4 = 20×5.5 =
0.14×700 = 1÷0.8 = 10÷0.25 =
2.6÷13 = 8.9 + 10.1 = 90 - 30.1 =
0.36 + 9.6 = 30÷0.6 = 13.5÷9 =
1.2×0.5 = 1.25×0.8 = 72×0.5 =
12.3 - 1.2 = 0.56÷0.28 = 0.28 + 0.42 =
0.27×3 = 7.8÷0.06 = 4.66 - 3.2 =
500÷0.1 = 0.75×4 = 20×5.5 =
0.14×700 = 1÷0.8 = 10÷0.25 =
2.6÷13 = 8.9 + 10.1 = 90 - 30.1 =
0.36 + 9.6 = 30÷0.6 = 13.5÷9 =
1.2×0.5 = 1.25×0.8 = 72×0.5 =
12.3 - 1.2 = 0.56÷0.28 = 0.28 + 0.42 =
0.27×3 = 7.8÷0.06 = 4.66 - 3.2 =
答案:
5000 3 110
98 1.25 40
0.2 19 59.9
9.96 50 1.5
0.6 1 36
11.1 2 0.7
0.81 130 1.46
二、把下面各分数化成最简分数。
$\frac{14}{21}=\frac{14\bigcirc(\ \ \ \ )}{21\bigcirc(\ \ \ \ )}=\frac{(\ \ \ \ )}{(\ \ \ \ )}$ $\frac{12}{36}=\frac{12\bigcirc(\ \ \ \ )}{36\bigcirc(\ \ \ \ )}=\frac{(\ \ \ \ )}{(\ \ \ \ )}$
$\frac{15}{20}=\frac{15\bigcirc(\ \ \ \ )}{20\bigcirc(\ \ \ \ )}=\frac{(\ \ \ \ )}{(\ \ \ \ )}$ $\frac{63}{90}=\frac{63\bigcirc(\ \ \ \ )}{90\bigcirc(\ \ \ \ )}=\frac{(\ \ \ \ )}{(\ \ \ \ )}$
$\frac{14}{21}=\frac{14\bigcirc(\ \ \ \ )}{21\bigcirc(\ \ \ \ )}=\frac{(\ \ \ \ )}{(\ \ \ \ )}$ $\frac{12}{36}=\frac{12\bigcirc(\ \ \ \ )}{36\bigcirc(\ \ \ \ )}=\frac{(\ \ \ \ )}{(\ \ \ \ )}$
$\frac{15}{20}=\frac{15\bigcirc(\ \ \ \ )}{20\bigcirc(\ \ \ \ )}=\frac{(\ \ \ \ )}{(\ \ \ \ )}$ $\frac{63}{90}=\frac{63\bigcirc(\ \ \ \ )}{90\bigcirc(\ \ \ \ )}=\frac{(\ \ \ \ )}{(\ \ \ \ )}$
答案:
$\frac{14}{21}=\frac{14\div(7)}{21\div(7)}=\frac{(2)}{(3)}$
$\frac{12}{36}=\frac{12\div(12)}{36\div(12)}=\frac{(1)}{(3)}$
$\frac{15}{20}=\frac{15\div(5)}{20\div(5)}=\frac{(3)}{(4)}$
$\frac{63}{90}=\frac{63\div(9)}{90\div(9)}=\frac{(7)}{(10)}$
三、连一连。

答案:
四、计算下面各题,能简算的要简算。
94.5 - 37.8÷2.7 12.5×6.4 59.2×3.16 - 59.2×3.06
94.5 - 37.8÷2.7 12.5×6.4 59.2×3.16 - 59.2×3.06
答案:
80.5 80 5.92
查看更多完整答案,请扫码查看