有一个硬纸做成的礼品盒，用彩带扎住（如图），打结处用去的彩带长18厘米．（1）共需要彩带多少厘米？（2）做这样一个礼品盒至少要多少硬纸？（3）这个礼品盒的体积是多少？
直接写出得数====+=== 1÷===
直接写出得数．×16= 10÷= 12÷=×=×=÷3=×=×=
6×=+=×= 3﹣=÷= 1÷=÷=﹣=×14=÷12=
直接写出得数．== 71.83÷8≈ 5.04×9.85≈=== 0.53=
直接写得数======= 60×60%= 2×32==
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= 1÷
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×16= 10÷
= 12÷
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×
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×
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÷3=
×
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×
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×
= 3﹣
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÷
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﹣
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×14=
÷12=
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= 71.83÷8≈ 5.04×9.85≈
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= 0.53=
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= 60×60%= 2×32=
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