《2025年每天100道口算题卡河北少年儿童出版社六年级数学下册苏教版》

求三角形的面积。
① a = 4dm h = 0.8dm S =
② a = 5.6cm h = 1.4cm S =
③ a = 2m h = 6m S =
④ a = $\frac{1}{9}$m h = 10m S =
⑤ a = $\frac{1}{10}$m h = 20m S =
⑥ a = 10dm h = 5dm S =
⑦ a = $\frac{1}{3}$dm h = $\frac{1}{2}$dm S =
⑧ a = 8cm h = 4cm S =
⑨ a = 9cm h = 3cm S =
⑩ a = 15cm h = $\frac{1}{3}$cm S =
⑪ a = 0.5cm h = 0.4cm S =
⑫ a = 1.2cm h = 0.6cm S =
⑬ a = 2.5m h = 0.4m S =
⑭ a = 8.4m h = 1.2m S =
⑮ a = 22dm h = 5dm S =
⑯ a = 24cm h = 12cm S =

答案： $P_{59}$①~⑧$1.6dm^{2}$ $3.92cm^{2}$ $6m^{2}$ $\frac{5}{9}m^{2}$ $1m^{2}$ $25dm^{2}$ $\frac{1}{12}dm^{2}$ $16cm^{2}$
⑨~⑯$13.5cm^{2}$ $\frac{5}{2}cm^{2}$ $0.1cm^{2}$ $0.36cm^{2}$ $0.5m^{2}$ $5.04m^{2}$ $55dm^{2}$ $144cm^{2}$