1.
3 6 19 20 24 27 30 25 38 40 49 51
From this list of number write:
i. a factor of 15
………………………………………….[1]
ii. a multiple of 18
………………………………………….[1]
iii. A square number
………………………………………….[1]
iv. an even number less than 10
………………………………………….[1]
v. all odd number
………………………………………….[1]
vi. a multiple of 15
………………………………………….[1]
2. Write 106 in:
a. Numbers
…………………………………….[1]
b. Words
……..……………………………………………............................[1]
3. David is raising money for charity. His target is to raise £1500 So far, he has
raised £468.37
How much more does David need to raise to reach his target?
£ = …………………………… [2]
4. 4. Work out
36.75 ÷ 21
[2]
5. Divide 90.45 by 15
.................................. [2]
6. Round the number 5.749098754:
(a) To 1 decimal place
(b) To the nearest whole number
(c) To the nearest tenth
(d) to the 4 significant figures
7. Write 108,205 in words.
……………………………………………………………………………..
………………………………………………………………………………[2]
8. A man shares Tsh 90,000 among two sons in the ratio 2:1.
How much does each son get?
………………………………………………………………………………. [2]
9. Expand the bracket
3(5 a−2)
……..……………………..[2]
10.Approximate the following calculation by rounding each number to 1
decimal place before multiplying:
39.74599×2.053
…………........................... [2]
11.List down all factors of 50
……………………………………............................ [1]
12.Find Highest Common Factor of 20 and 26
…………………….……………………..[2]
13.Round these numbers to the given degree of accuracy
a. 23.931 (2 decimal places)
………….…………………[1]
b. 6.089054993 (5 decimal places)
………….…………………[1]
c. 0.00066739 ( 3 significant figures)
………….…………………[1]
14.Change 1. 2̇ 3̇ into mixed fraction
………………….…………………[3]
15.Asha and Juma received 630,000 Tsh from their father. The father decided
to give Asha twice as much as the amount that Juma could receive. How
much did Asha receive.?
………………….…………………[2]
16.Find all common factors of 16 and 24
……………………………….…………………[1]
17.Express the ratio 45:60 in its simplest form.
……………, ……..….………[2]
18.Estimate the value of
91899.4 × 27. 6
….……………[1]
19.Calculate.
(a) 92 −(6+ 5)
….……………[2]
(b) 44 ÷ 11+5×7 =
….……………[2 ]
20.Find the LCM of 9 and 12
…………………………………[2 ]
21. A recipe uses ingredients in the ratio 4:2:1 (flour : sugar : butter).
If the mass of sugar is 700g, how much of each ingredient left is needed?
…………………………………[1]
…………………………………[1]
22. Convert:
(a) 0.375 into a fraction in simplest form
…………………....[2]
7
(b) 8 into a decimal
…………………....[2]
23.Estimate the value of
3.485× √ (35.82)
351.25
…………………....[2]
24.Work out
51.492÷ 7
…………………………… [2]
25.Tuong works that 638 × 21 = 13 398.
Use this information to write down the answer to these calculation
a. 63.8 ×2.1=
b. 6.38 ×2.1=
[1]
26. Considering the inequality
x <2
a. List first five integer number satisfying the inequality above
………………………………………….[1]
b. What is largest integer number satisfying the inequality
………………………[1]
c. Draw and represent the inequality in the number line
[1]
27.Work out
89−23.4773
…………………………………..[2]
28.Write these decimals in order of size
6.481 6.549 6.5 6.09 6.45
………………………………………………………………………….. [1]
29.At 11:00 p.m., the temperature in Alaska was−7 ℃ . Four hours earlier, the
temperature was 10 ℃ warmer. What was the temperature at 07:00 p.m.?
…………………………… ℃ [1]
