MATHEMATICS YEAR 7 MID – SEM 2 ASSESMENT
1. Work these out.
i)
5 − −2
ii)
−2 − 5
iii)
−4 − −3
iv)
−3 − −4
2022
[4mks]
2. What is place value represented by the digit 7 in the following? [6mks]
a) 47
b) 372
c) 702
d) 17 000
e) 370 000
f) 5 700 000
3. Convert the following fractions into decimals.
[3mks]
a) 12/60
b) 3/24
c) 25/80
4. Convert the following into fractions in their simplest form.
[4mks]
a) 60%
b) 0.35
c) 80%
d) 0.0325
5. At 9 p.m. the temperature in Kurt’s garden was −2 °C. During the night
the temperature went down 5 degrees and then it went up 10 degrees
by midday the next day. What was the temperature at midday in Kurt’s
garden?
[2mks]
6. Write down the term-to-term rule and the next two terms of this
sequence.
2, 6, 10, 14, …,
[2mks]
7. The first term of a sequence is 5. The term-to-term rule of the sequence
is: ‘Multiply by 2 and then add 1.’ Write down the first three terms of
the sequence.
[1mks]
8. Mathew is p years old. David is 2 years older than Mathew. Adam is 3
years younger than Mathew. Kathryn is 4 times older than Mathew.
Write down an expression for each of their ages.
[4mks]
9. Work out the value of each expression.
a) a + 5 when a = 3
b)
x − 9 when x = 20
[5mks]
c)
f + g when f = 7 and g = 4
d)
m − n when m = 100 and n = 25
e)
e 3k when k = 5
10.Work these out.
a) 4.6 × 10
b)
0.389 × 10
c)
2.5 × 100
d)
0.07 × 100
e)
6.5 × 1000
[5mks]
11.Write these decimal numbers in order of size, starting with the smallest.
a) 3.46, 2.6, 3.31, 3.49
[1mk]
b)
0.71, 0.52, 0.77, 0.59
[1mk]
6.9, 6.82, 6.8, 6.97
c)
12.Round each number to one decimal place.
a) 8.27
b)
2.461
c)
9.194
d)
12.861
e)
0.066
13.Use a written method to work these out.
a) 5.79 + 4.15
b)
25.81 + 58.4
c)
8.76 − 4.14
[1mk]
[5mks]
[4mks]
d)
38.9 − 19.78
14.Tiago has a 0.3 l bottle of medicine. He is told to take two 5ml spoonful
of medicine three times a day. How many days will the medicine last?
Show your working.
[2mks]
15.Calculate the sizes of the lettered angles.
[3mks]
16. Taji wants to know when people prefer to do their shopping. He stands
outside the supermarket on a Saturday and asks people as they come
out of the shop. Will the results of his survey give a fair result? Give a
reason for your answer.
[2mks