三、画出下列立体图形从不同位置看到的形状。
从上面看 从正面看 从右面看

从上面看 从正面看 从右面看
答案
从上面看:
□□□
□
从正面看:
□
□□□
从右面看:
□
□□
答:已按要求画出该立体图形从三个指定位置看到的形状。
□□□
□
从正面看:
□
□□□
从右面看:
□
□□
答:已按要求画出该立体图形从三个指定位置看到的形状。
1. 一只大树袋熊和一只小树袋熊一个星期(7天)一共约能吃多少千克的桉树叶?
答案
$\frac{6}{7}+\frac{5}{6}=\frac{71}{42}$(千克)
$\frac{71}{42}×7=\frac{71}{6}$(千克)
答:一共约能吃$\frac{71}{6}$千克的桉树叶。
$\frac{71}{42}×7=\frac{71}{6}$(千克)
答:一共约能吃$\frac{71}{6}$千克的桉树叶。
2.有一块长24分米、宽16分米的布,把它平均剪成大小一样的正方形布料,从不浪费的角度考虑,小正方形布料的边长可能是多少?最大为多少分米?此时,能剪下这样的布料多少块?
答案
边长可能是1、2、4、8分米,最大为8分米。
$(24÷8)×(16÷8)=3×2=6$(块)
答:能剪下6块这样的布料。
$(24÷8)×(16÷8)=3×2=6$(块)
答:能剪下6块这样的布料。
一、看图,完成句子,每空一词。
1. Miss Li is going to
2. We should
3. Mr Liang is
4. Jack is going to
5. Don't
1. Miss Li is going to
clean
the classroom with her students. 2. We should
drink
8 glasses of water every day. 3. Mr Liang is
tired
because he works from 9:00 a. m. to 7:00 p. m. every day. 4. Jack is going to
play
chess with his father this weekend. 5. Don't
eat
too much candy. It's bad for your teeth. 答案
1. clean 2. drink 3. tired 4. play 5. eat
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