Mathematics Project Basic Skills
Grade 10 Arithmetic
Mathematics Department
Lent 2022 Project
20 = _________%
Project – Basic Skills
Answer ALL questions, and submit this assignment physically to the teacher. Show the steps to receive full marks.
1. The cost of 5 of the same books is $20. What is the cost of 3 of these books? [2]
2. A journey takes 4 hours to complete travelling at a speed of 60 miles per hour. How long will the same journey take travelling at 30 miles per hour? [2]
3. What is the smaller share when $60 000 is divided in the ratio 7:5? [2] 4. Simplify the ratio 20 minutes : 2 hours. [2]
5. Evaluate: 20 − 7 + 12 ÷ 3 × 6 [2]
6. In a certain city the temperature in the morning was −5 °��. By midday the temperature rose by 12 °��. Calculate the temperature at midday. [2]
7. Approximate 23.705 to:
a) 2 decimal places
b) 2 significant figures [2]
8. Write each number in scientific notation.
a) $23 500 000
b) 0.0035 [2]
9. Find the size of each angle marked with a letter.
w x
Give a reason for each answer. [4]47°
