Mixed Topic Worksheet Grades 1/2/3: Day 015
- 1
Question 1. Is an angle of 89^° acute, obtuse or reflex?
Give a reason for your answer.Types of Angles▶ Show worked answerHide worked answer
- B1: acute
- B1: it is less than 90^°
Answer: acute, because 89^° is less than 90^°[2 marks] - 2
Question 2. A triangle has an area of 40 cm².
The perpendicular height of the triangle is 5 cm.
Work out the base of the triangle.Area of Triangles▶ Show worked answerHide worked answer
- M1: 40 × 2 ÷ 5
- A1: 16
Answer: 16 cm[2 marks] - 3
Question 3. Marta thinks of an integer. She doubles it and then adds 1.
Her answer is -9.
Work out Marta's integer.Integers & Non-Integers▶ Show worked answerHide worked answer
- M1: -9 - 1 = -10
- A1: -5
Answer: -5[2 marks] - 4
Question 4. A scatter graph shows the height and arm span of 12 students. The points lie close to a straight line sloping upwards from left to right.
Describe the relationship between height and arm span. [1]Scatter Graph Fundamentals▶ Show worked answerHide worked answer
- B1: positive correlation, taller students tend to have a longer arm span
Answer: Positive correlation: as height increases, arm span increases[1 mark] - 5
Question 5. The cost, C pounds, of printing n posters is given by C = 8n + 12.
The cost of printing the posters is 60 pounds.
Work out the value of n.Substituting into Real-Life Formulae▶ Show worked answerHide worked answer
- M1: forms 8n = 60 - 12
- A1: n = 6
Answer: 6[2 marks]
Mixed Topic Worksheet Grades 1/2/3: Day 015
- 1
Question 1. Is an angle of 89^° acute, obtuse or reflex?
[2 marks]
Give a reason for your answer.Types of Angles▶ Show worked answerHide worked answer
- B1: acute
- B1: it is less than 90^°
Answer: acute, because 89^° is less than 90^° - 2
Question 2. A triangle has an area of 40 cm².
[2 marks]
The perpendicular height of the triangle is 5 cm.
Work out the base of the triangle.Area of Triangles▶ Show worked answerHide worked answer
- M1: 40 × 2 ÷ 5
- A1: 16
Answer: 16 cm - 3
Question 3. Marta thinks of an integer. She doubles it and then adds 1.
[2 marks]
Her answer is -9.
Work out Marta's integer.Integers & Non-Integers▶ Show worked answerHide worked answer
- M1: -9 - 1 = -10
- A1: -5
Answer: -5 - 4
Question 4. A scatter graph shows the height and arm span of 12 students. The points lie close to a straight line sloping upwards from left to right.
[1 mark]
Describe the relationship between height and arm span. [1]Scatter Graph Fundamentals▶ Show worked answerHide worked answer
- B1: positive correlation, taller students tend to have a longer arm span
Answer: Positive correlation: as height increases, arm span increases - 5
Question 5. The cost, C pounds, of printing n posters is given by C = 8n + 12.
[2 marks]
The cost of printing the posters is 60 pounds.
Work out the value of n.Substituting into Real-Life Formulae▶ Show worked answerHide worked answer
- M1: forms 8n = 60 - 12
- A1: n = 6
Answer: 6
Mixed Topic Worksheet Grades 1/2/3: Day 015
- 1
Question 1. Is an angle of 89^° acute, obtuse or reflex?
Give a reason for your answer.Types of Angles▶ Show worked answerHide worked answer
- B1: acute
- B1: it is less than 90^°
Answer: acute, because 89^° is less than 90^°[2 marks] - 2
Question 2. A triangle has an area of 40 cm².
The perpendicular height of the triangle is 5 cm.
Work out the base of the triangle.Area of Triangles▶ Show worked answerHide worked answer
- M1: 40 × 2 ÷ 5
- A1: 16
Answer: 16 cm[2 marks] - 3
Question 3. Marta thinks of an integer. She doubles it and then adds 1.
Her answer is -9.
Work out Marta's integer.Integers & Non-Integers▶ Show worked answerHide worked answer
- M1: -9 - 1 = -10
- A1: -5
Answer: -5[2 marks] - 4
Question 4. A scatter graph shows the height and arm span of 12 students. The points lie close to a straight line sloping upwards from left to right.
Describe the relationship between height and arm span. [1]Scatter Graph Fundamentals▶ Show worked answerHide worked answer
- B1: positive correlation, taller students tend to have a longer arm span
Answer: Positive correlation: as height increases, arm span increases[1 mark] - 5
Question 5. The cost, C pounds, of printing n posters is given by C = 8n + 12.
The cost of printing the posters is 60 pounds.
Work out the value of n.Substituting into Real-Life Formulae▶ Show worked answerHide worked answer
- M1: forms 8n = 60 - 12
- A1: n = 6
Answer: 6[2 marks]