Page 195 - MAT KS3 Y8 Cambridge CheckPoint

13 Some elephants were born in captivity. They were weighed and the results, measured to the nearest
kilogram are shown.

75 101 90 82 97 79 88
92 84 94 107 89 93 80

a Copy and complete the grouped frequency table.
Mass, m (g) Tally Frequency
b How many of the elephants had a mass of more than
90 kg but not more than 100 kg? 70 < w 80
c How many of the elephants had a mass of more 80 < w 90
than 90 kg? 90 < w 100
d How many of the elephants had a mass of 90 kg or less? 100 < w 110
e Altogether, how many elephants were weighed?
Total
f Is the mass of an elephant discrete data or
continuous data?
g Is the number of elephants measured discrete data or continuous data?
14 The table shows some fractions, decimals and percentages. Copy the table and complete it.

1 4 6
Fraction 4 5 25

Decimal 0.6 0.2 0.5 0.08
Percentage 30% 64%

15 Work out these additions and subtractions.
Write each answer in its simplest form and as a mixed number where appropriate.
5
a 1 + 5 b 2 − 1 c 2 + 3 1 d 4 1 − 2 5
4 8 3 4 6 4 2 9
16 Work out these multiplications and divisions.
Write each answer in its simplest form and as a mixed number where appropriate.
a 1 × 1 b 1 ÷ 2 c 5 × 9 d 9 ÷ 5
3 7 4 5 8 8
17 These two triangles are congruent. B E
80 °
14.2 cm 8.4 cm

67 ° 33 °
A C D F
15.2 cm
a What is the length of the side: i EF ii BC iii DF?
b What is the size of i ∠ ACB ii ∠ DEF iii ∠ BAC?
18 Draw a sketch of the net of this triangular prism.

19 Simplify these expressions.
a 3a + 7b + 5a – 2b b 3x + 7y + 9 − x + 5y
2
2

End-of-year review 193