Mixed Topic Worksheet Grades 1/2/3: Day 005
- 1
Question 1. Sam says, "An angle of 180^° is obtuse because it is bigger than a right angle."
Is Sam correct?
Explain how you know.Types of Angles▶ Show worked answerHide worked answer
- B1: No
- B1: an obtuse angle is less than 180^°; 180^° is a straight angle
Answer: No. 180^° is a straight line, not between 90^° and 180^°[2 marks] - 2
Question 2. A box holds 67 pencils. A shop has 8 boxes. Use the lattice method to work out the total number of pencils.
Lattice Method for Multiplication▶ Show worked answerHide worked answer
- M1: Boxes: 6 × 8 = 48, 7 × 8 = 56
- A1: 536
Answer: 536[2 marks] - 3
Question 3. Two straight lines cross.
One of the angles is 64^°.
Jo says, "The angle opposite it is 116^°".
Is Jo correct?
Explain how you know.Opposite Angles▶ Show worked answerHide worked answer
- B1: No
- B1: opposite angles are equal, so the angle is 64^° (116^° is the angle next to it)
Answer: No. The opposite angle is 64^°[2 marks] - 4
Question 4. Sam invests £400 in a savings account.
The account pays 5% simple interest per year.
Work out the interest after 1 year.Simple Interest▶ Show worked answerHide worked answer
- M1: 400 × 5 ÷ 100
- A1: 20
Answer: £20[2 marks] - 5
Question 5. k is a positive integer.
k(2x - 3) = 8x - 12
Work out the value of k.Expanding Single Brackets▶ Show worked answerHide worked answer
- M1: k × 2x = 8x so 2k = 8, or k × (-3) = -12
- A1: 4
Answer: 4[2 marks]
Mixed Topic Worksheet Grades 1/2/3: Day 005
- 1
Question 1. Sam says, "An angle of 180^° is obtuse because it is bigger than a right angle."
[2 marks]
Is Sam correct?
Explain how you know.Types of Angles▶ Show worked answerHide worked answer
- B1: No
- B1: an obtuse angle is less than 180^°; 180^° is a straight angle
Answer: No. 180^° is a straight line, not between 90^° and 180^° - 2
Question 2. A box holds 67 pencils. A shop has 8 boxes. Use the lattice method to work out the total number of pencils.
[2 marks]Lattice Method for Multiplication▶ Show worked answerHide worked answer
- M1: Boxes: 6 × 8 = 48, 7 × 8 = 56
- A1: 536
Answer: 536 - 3
Question 3. Two straight lines cross.
[2 marks]
One of the angles is 64^°.
Jo says, "The angle opposite it is 116^°".
Is Jo correct?
Explain how you know.Opposite Angles▶ Show worked answerHide worked answer
- B1: No
- B1: opposite angles are equal, so the angle is 64^° (116^° is the angle next to it)
Answer: No. The opposite angle is 64^° - 4
Question 4. Sam invests £400 in a savings account.
[2 marks]
The account pays 5% simple interest per year.
Work out the interest after 1 year.Simple Interest▶ Show worked answerHide worked answer
- M1: 400 × 5 ÷ 100
- A1: 20
Answer: £20 - 5
Question 5. k is a positive integer.
[2 marks]
k(2x - 3) = 8x - 12
Work out the value of k.Expanding Single Brackets▶ Show worked answerHide worked answer
- M1: k × 2x = 8x so 2k = 8, or k × (-3) = -12
- A1: 4
Answer: 4
Mixed Topic Worksheet Grades 1/2/3: Day 005
- 1
Question 1. Sam says, "An angle of 180^° is obtuse because it is bigger than a right angle."
Is Sam correct?
Explain how you know.Types of Angles▶ Show worked answerHide worked answer
- B1: No
- B1: an obtuse angle is less than 180^°; 180^° is a straight angle
Answer: No. 180^° is a straight line, not between 90^° and 180^°[2 marks] - 2
Question 2. A box holds 67 pencils. A shop has 8 boxes. Use the lattice method to work out the total number of pencils.
Lattice Method for Multiplication▶ Show worked answerHide worked answer
- M1: Boxes: 6 × 8 = 48, 7 × 8 = 56
- A1: 536
Answer: 536[2 marks] - 3
Question 3. Two straight lines cross.
One of the angles is 64^°.
Jo says, "The angle opposite it is 116^°".
Is Jo correct?
Explain how you know.Opposite Angles▶ Show worked answerHide worked answer
- B1: No
- B1: opposite angles are equal, so the angle is 64^° (116^° is the angle next to it)
Answer: No. The opposite angle is 64^°[2 marks] - 4
Question 4. Sam invests £400 in a savings account.
The account pays 5% simple interest per year.
Work out the interest after 1 year.Simple Interest▶ Show worked answerHide worked answer
- M1: 400 × 5 ÷ 100
- A1: 20
Answer: £20[2 marks] - 5
Question 5. k is a positive integer.
k(2x - 3) = 8x - 12
Work out the value of k.Expanding Single Brackets▶ Show worked answerHide worked answer
- M1: k × 2x = 8x so 2k = 8, or k × (-3) = -12
- A1: 4
Answer: 4[2 marks]