Mathematics questions, unit 5
Nama / NameKelas / ClassTarikh / Date
Length, Mass and Volume of Liquid
40 marks. Use Practice to check each answer as you go, or Exam to answer everything first.
Section A: objective questions
10 marksChoose the correct answer.
1
Question 1
Convert 3612 cm to mm.
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B
12 cm = 0.5 cm, so the length is 36.5 cm. 1 cm = 10 mm, so 36.5 × 10 = 365 mm.
2
Question 2
Convert 47 mm to cm. Give the answer as a decimal.
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D
Going from mm to cm, divide by 10. 47 ÷ 10 = 4.7 cm.
3
Question 3
5 m 80 cm = ______ m
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A
80 cm = 80 ÷ 100 = 0.8 m. So 5 m 80 cm = 5 m + 0.8 m = 5.8 m.
4
Question 4
Write 10 300 m in km. Give the answer as a mixed number.
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C
10 300 ÷ 1 000 = 10.3 km. 0.3 = 310, so the answer is 10 310 km.
5
Question 5
A shop buys 1 000 tins of milk powder. Each tin has a mass of 0.65 kg. What is the total mass, in g?
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B
1 000 × 0.65 kg = 650 kg. 650 × 1 000 = 650 000 g.
6
Question 6
6 025 mℓ = ______ ℓ
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C
mℓ to ℓ: divide by 1 000. 6 025 ÷ 1 000 = 6.025 ℓ.
7
Question 7
A bag has a mass of 4.205 kg. A book has a mass of 0.38 kg. What is their total mass?
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A
Line up the decimal points: 4.205 + 0.380 = 4.585 kg.
8
Question 8
A stack of 8 identical exercise books is 12 cm thick. What is the thickness of one book, in mm?
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D
12 cm ÷ 8 = 1.5 cm. 1.5 × 10 = 15 mm.
9
Question 9
Diagram 1 shows the mass of a durian. How many more grams are needed to make 3 kg?
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C
The pointer shows 2 300 g. 3 000 g − 2 300 g = 700 g.
10
Question 10
Which distance is the longest?
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A
Change all to m: 0.8 km = 800 m, 78 km = 875 m. So the order is 750 m, 800 m, 875 m, 880 m. The longest is 880 m.
Section B: structured questions
30 marksAnswer all questions. Show your working.
11
Question 11
Convert the measurements.
[1 mark]
(a)9.2 cm = ______ mm
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[1 mark]
(b)1.37 m = ______ cm
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[1 mark]
(c)42.195 km = ______ m
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12
Question 12
A bottle contains 2 750 mℓ of juice.
[1 mark]
(a)Write the volume in ℓ as a decimal.
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[1 mark]
(b)Write the volume in ℓ as a mixed number in its simplest form.
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0.75 = 75100 = 34.
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[1 mark]
(c)Is 0.7 ℓ equal to 710 ℓ?
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Yes
0.7 means 7 tenths, which is 710. Both are 700 mℓ.
13
Question 13
Robot P is 48.6 cm tall. Robot Q is 39.9 cm tall. Robot R is 0.8 cm shorter than robot Q.
[1 mark]
(a)What is the difference in height between robot P and robot Q?
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[2 marks]
(b)Calculate the height of robot R, in mm.
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14
Question 14
Diagram 2 shows the distances on Hani's trip to the bird park. Hani travels from home to the flower shop, then to the restaurant, then to the bird park.
[1 mark]
(a)Change the distance from Hani's home to the flower shop to m.
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[2 marks]
(b)Calculate the total distance from Hani's home to the bird park, in m.
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15
Question 15
Puan Salmah bought 5.48 kg of flour, 1 250 g of butter and 2 35 kg of sugar.
[2 marks]
(a)Calculate the total mass, in kg.
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[1 mark]
(b)Write the total mass in g.
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16
Question 16
Mak Long poured 2 12 ℓ of syrup equally into 20 small bottles.
[2 marks]
(a)Calculate the volume of syrup in one bottle, in mℓ.
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17
Question 17
Diagram 3 shows the volume of water in three containers, P, Q and R.
[2 marks]
(a)Calculate the total volume of water in the three containers, in ℓ.
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[1 mark]
(b)The water in container R is shared equally among 7 glasses. Each glass has 250 mℓ. Is this true?
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True
1 34 ℓ = 1 750 mℓ. 1 750 ÷ 7 = 250 mℓ.
[1 mark]
(c)Show your calculation for (b).
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18
Question 18
Farid worked out 9.2 km − 780 m. Diagram 4 shows his working.
[1 mark]
(a)Is Farid's answer correct?
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Not correct
[1 mark]
(b)Explain Farid's mistake.
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[1 mark]
(c)Find the correct answer, in km.
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19
Question 19
Create a story for this number sentence: 2.4 ℓ ÷ 6 = 400 mℓ
[2 marks]
(a)Write your story.
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Kak Lina has 2.4 ℓ of fruit punch. She pours it equally into 6 cups for a birthday party. Each cup has 400 mℓ of fruit punch.
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20
Question 20
Diagram 5 shows a bar model. Ashley's home is 6 34 km from school. This is 3 times the distance from Jeera's home to school.
[2 marks]
(a)Calculate the distance from Jeera's home to school, in m.
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[2 marks]
(b)Both pupils go to school and come back home in one day. Calculate the total distance they travel, in m.
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Tick each point you got.