Download year6 maths revision answers

MATHS REVISION – GRADE 6
NAME __________________
1.(a) 5.9 ÷ 10 x 1000 = 590
(b) ( 4 x 9 ) ÷ 6 = 6
c) 2/9 + 8/9 = 10/9 = 1 1/9
(d) What is 2/3 of 78? 52
e) 9/10 – 2/5 = 5/10 = ½
(f) 5 x ¾ = 3.75
g) ¼ ÷ 3 = 1/12
(h) 17.39 – 6.8 = 10.59
i) 25% of 460 = 115
(j) Place value of 6 in 23.56 = 6 hundredth
k) Write 10586 in words Ten thousand five hundred eighty six (l) Round 2.357 to 1 dp = 2.4
m) 67 – a = 18 ; a = 49
(n) 14.5 > 14. 38 ( put <, > or =)
o) Angles in a triangle add up to 180°
(p) Write the prime factors of 24 = 2 x 2 x 2 x 3
q) Write 2/5 as decimals 0.4
(r) Write 90% as fraction 9/10
s) LCM of 4 and 6 12
(t) An obtuse angle measures more than 90°
u) HCF of 12 and 18 6
(v) 2/3 of 72 = 48
w) Write 4/5 as percentage 80%
(x) Write 15.30 as it is on a 12 hour clock time 3:30pm
y) 350 cm = 3.5 m
(z) 4 ¾ kg = 4500 grams.
II. Solve the following:
1. In an afternoon, 2376 people watch a concert.
Another 5851 people watch a concert in the evening.
Altogether, how many people watch the concerts? = 8227 people
2. Frankie scores 5·6 points in a dance competition.
Linda scores 0·9 more points than Frankie.
How many points does Linda score? = 6.5 points
3. Find the missing angle.
X = 80°
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4. Which of these calculations equals 24?
Put a tick or a cross next to each one.
a) 3 + 9 × 2
X
b) 4 × 7 – 4 T
c) 18 + (54 ÷ 9) T
d) 48 ÷ 6 – 4 X
5. Carla takes five books to school.
These books and Carla’s bag weigh 4·5 kg together.
a) The books weigh 750 g, 0·6 kg, 700 g, 420 g and 1kg.
Work out the total weight of these five books. Give your answer in kg and g. 3 kg 470 grams
b) Work out the weight of Carla’s empty bag? 4.5 – 3.47 = 1.03 kg
c) One day, Carla takes an extra book to school.
The weight of Carla’s bag and all the books is now 4 ¾ kg
Work out the weight of the extra book. 4.75 – 4.5 = 250 g
6. Draw all the possible lines of symmetry, if any, of the following shapes.
7. Martina is sick.
The doctor tells Martina to take 5 millilitres (ml) of syrup 3 times a day for 5 days.
a) How many millilitres (ml) of syrup does Martina take
everyday? 15 ml
b) The capacity of the bottle is 90 millilitres (ml).
How much syrup is left in the bottle after 5 days?
90 – 75 = 15 ml
c) Work out the number of teaspoons Martina needs
in order to fill the whole water bottle with water.
1500 ÷ 5 = 300 spoons
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8. Choose numbers from the following table to fill in the boxes below.
Use each number only once.
9. Julia has a number of equilateral triangles.
Each equilateral triangle has a perimeter of 12 cm.
a) Work out the length of each side of the equilateral triangle. 4 cm
b) Julia uses these triangles to form one big equilateral triangle.
i) Work out the perimeter of the big equilateral triangle.
16 x 3 = 48 cm
ii) Shade ¼ of the big equilateral triangle.
¼ of 16 = 4
10. The diagram below is made up of a rectangle and four equal squares.
The breadth of the rectangle is ¼ that of its length.
a) Work out the length of the rectangle
15 x 4 = 60 cm
b) Work out the perimeter of the rectangle
2 (60 + 15) = 150 cm
c) The total area of the four squares is 144 cm².
What is the length of each side of the squares? 144 ÷ 4 = 36; √36 = 6 cm
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11. All the Year 6 children in a school were asked about their favourite hobby.
a) What percentage of the children like computer games? 10%
b) More children prefer reading rather than collecting stickers.
Is this True or False? Explain. Reading = 20%, where as collecting stickers = 10%
c) How many Year 6 children are there in this school? 60 children
12. Look at this triangle.
a)
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13. Four identical small rectangles are joined together to make a large rectangle.
A is the point (6, 5)
Work out the coordinates of B, C, and D. B= (12, 5); C = (6, -5) ; D = (12, -5)
14. Work out the area and perimeter of the shaded shape.
Area = 11 sq.units
Perimeter = 24
15. Draw a rectangle on this centimetre grid with
perimeter 16 cm and area 12 cm².
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16. The diagram shows the net of a cube.
Put numbers on the blank faces so that opposite faces of the cube add up to 7.
17. Henry asked 180 students what their favourite meal was.
He drew an accurate pie chart.
Use the pie chart to complete the table.
18. In a class of 50 students, 18 take Chorus, 26 take Band, and 2 take both Chorus and Band.
How many students in the class are not enrolled in either Chorus or Band?
19. There are 360 passengers on an aeroplane.
¼ of them are British ; 10% of them are French ;
2/5 of them are German ; the rest are Maltese
How many Maltese passengers are there?
Brit = 90; Fr = 36; Ger 144; Malltese = 90
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