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- 1. Fill-in-the-Blank15 minutes1 pt
Round off 0.016668 correct to three significant figures.

- 2. Fill-in-the-Blank15 minutes1 pt
Express 87.5% as a decimal.

- 3. Fill-in-the-Blank15 minutes1 pt
Evaluate the following:

56 Ã· 0.07

- 4. Fill-in-the-Blank15 minutes1 pt
Evaluate the following:

[ (100 Ã· 5 + 6) x 4 ] - 20

- 5. Fill-in-the-Blank15 minutes1 pt
A box contains red and blue balls in the ratio 3 : 7.

There are 18 red balls in the box.

How many balls are there in the box altogether?

- 6. Fill-in-the-Blank15 minutes1 pt
During a sale, the number of shirts bought in a store increased from 20 to 25.

Calculate the percentage increase in the number of shirts bought.

- 7. Fill-in-the-Blank15 minutes1 pt
Find the LCM of 12, 18, and 30.

- 8. Fill-in-the-Blank15 minutes1 pt
Find the sum of perfect squares between 20 and 40.

- 9. Fill-in-the-Blank15 minutes1 pt
An educational television programme started at 9:25 am. It lasted for $1\frac{3}{4}$ hours.

What time did the programme end?

- 10. Fill-in-the-Blank15 minutes1 pt
Given that

$F=\frac{9c}{5}+32$

Find the value of c when F=50

- 11. Fill-in-the-Blank15 minutes1 pt
Using the numbers below,

2, 9, 16, 21, 57, 81

Write down:

An odd number that is divisible by 7.

- 12. Fill-in-the-Blank15 minutes1 pt
Find the square root of $2\frac{7}{9}$ .

Give your answer to 2 decimal places.

- 13. Fill-in-the-Blank15 minutes1 pt
Evaluate 58 Ã· 0.02.

- 14. Fill-in-the-Blank15 minutes1 pt
Estimate the value of $\frac{4.9963\times\left(-8.006\right)^2}{0.9863}$ ,

giving your answer to one significant figure.

- 15. Fill-in-the-Blank15 minutes1 pt
Find the value of $4^2-\sqrt[]{64}$ .

- 16. Fill-in-the-Blank15 minutes1 pt
Liza earns $3200 a month. She spends $\frac{3}{8}$ of her salary every month. She gives her parents $\frac{2}{5}$ of the remainder and saves the rest. How much money does she save every month?