問 1
1 点A technician has a rope that is \(24 \text{ m}\) long. If he cuts it into \(30\) equal pieces, what is the length of each piece in millimetres?
Primary School · Mathematics
Length and Distance (mm/cm/m/km)：練習問題
その場で採点される選択問題 5 問と、解説つきの記述問題 5 問。すべて「Length and Distance (mm/cm/m/km)」からの出題です。
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問 2
1 点A rectangular field is \(12 \text{ m}\) long and \(800 \text{ cm}\) wide. Fence posts are placed every \(500 \text{ mm}\) along the entire perimeter. How many fence posts are used in total?
問 3
1 点A designer is arranging a workstation. A monitor is \(45 \text{ cm}\) wide, and a speaker is \(125 \text{ mm}\) wide. If she places two identical speakers on either side of the monitor, what is the total width of the setup in millimetres?
問 4
1 点A runner trains by running around a square field with a side length of \(150 \text{ m}\). If he completes \(5\) full laps around the perimeter of the field, how many kilometres has he run in total?
問 5
1 点A roll of wire is \(5 \text{ m}\) long. If a technician cuts \(4\) identical pieces, each \(90 \text{ cm}\) long, from the roll, how much wire is left in centimetres?
問 6
2 点A math book is \(26\) cm long. What is its length in millimetres?
まず自分で答えを書いてから、解説と照らし合わせましょう。
問 7
4 点A blue ribbon is \(2 \text{ m } 50 \text{ cm}\) long. A red ribbon is \(400 \text{ mm}\) shorter than the blue ribbon. If a yellow ribbon is \(1 \text{ m } 20 \text{ cm}\) longer than the red ribbon, how long is the yellow ribbon in centimetres?
まず自分で答えを書いてから、解説と照らし合わせましょう。
問 8
5 点Arrange the following four ribbon lengths in order from the longest to the shortest: \(0.06 \text{ km}\), \(58 \text{ m}\), \(5900 \text{ cm}\), and \(61000 \text{ mm}\).
まず自分で答えを書いてから、解説と照らし合わせましょう。
問 9
3 点An architect is building a model of a skyscraper. He has two wooden rods.
a) The first rod is 25 cm long. How many millimetres long is this rod?
b) The second rod is 180 mm long. If he places the two rods end-to-end, what is the total length in centimetres?
まず自分で答えを書いてから、解説と照らし合わせましょう。
問 10
5 点Sarah is measuring the lengths of three storage boxes for her craft room. Box A is \(45 \text{ cm } 6 \text{ mm}\) long, Box B is \(480 \text{ mm}\) long, and Box C is \(0.4 \text{ m}\) long.
a) Express the length of Box A in millimetres.
b) Which box is the longest? Show your calculation.
c) If Sarah places all three boxes end-to-end, what is the total length in centimetres?
まず自分で答えを書いてから、解説と照らし合わせましょう。
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