Mixed Topic Worksheet Grades 1/2/3: Day 021
- 1
Question 1. Leo looks at this cuboid.
He says, "A cuboid has 8 faces."
Is Leo correct?
Give a reason for your answer.Faces, Edges & Vertices▶ Show worked answerHide worked answer
- B1: No (it has 6 faces)
- B1: a reason: 8 is the number of vertices, or the cuboid has 3 pairs of opposite faces
Answer: No; a cuboid has 6 faces, and 8 is its number of vertices[2 marks] - 2
Question 2. Truncate 2.4983 to 2 decimal places.
Truncating Decimals▶ Show worked answerHide worked answer
- M1: keep 2 decimal places and remove the rest
- A1: 2.49
Answer: 2.49[2 marks] - 3
Question 3. A regular polygon has a perimeter of 63 cm. Each side is 9 cm. Work out the number of sides the polygon has.
Identifying Regular Polygons▶ Show worked answerHide worked answer
- M1: 63 ÷ 9 (perimeter divided by the length of one side)
- A1: 7
Answer: 7[2 marks] - 4
Question 4. Eli says that the straight line through the points (-3, 2) and (4, 2) has equation x = 2.
Is Eli correct?
You must give a reason for your answer.Vertical & Horizontal Lines▶ Show worked answerHide worked answer
- M1: both points have y = 2, so the line is horizontal
- A1: no, the equation is y = 2
Answer: No. Both points have y-coordinate 2, so the line is horizontal and its equation is y = 2.[2 marks] - 5
Question 5. Write down the inequality shown on the number line.
Drawing Inequalities on Number Lines▶ Show worked answerHide worked answer
- B1: closed circle at -1, so -1 ≤ x
- B1: open circle at 3, so x < 3: -1 ≤ x < 3
Answer: -1 ≤ x < 3[2 marks]
Mixed Topic Worksheet Grades 1/2/3: Day 021
- 1
Question 1. Leo looks at this cuboid.
[2 marks]
He says, "A cuboid has 8 faces."
Is Leo correct?
Give a reason for your answer.Faces, Edges & Vertices▶ Show worked answerHide worked answer
- B1: No (it has 6 faces)
- B1: a reason: 8 is the number of vertices, or the cuboid has 3 pairs of opposite faces
Answer: No; a cuboid has 6 faces, and 8 is its number of vertices - 2
Question 2. Truncate 2.4983 to 2 decimal places.
[2 marks]Truncating Decimals▶ Show worked answerHide worked answer
- M1: keep 2 decimal places and remove the rest
- A1: 2.49
Answer: 2.49 - 3
Question 3. A regular polygon has a perimeter of 63 cm. Each side is 9 cm. Work out the number of sides the polygon has.
[2 marks]Identifying Regular Polygons▶ Show worked answerHide worked answer
- M1: 63 ÷ 9 (perimeter divided by the length of one side)
- A1: 7
Answer: 7 - 4
Question 4. Eli says that the straight line through the points (-3, 2) and (4, 2) has equation x = 2.
[2 marks]
Is Eli correct?
You must give a reason for your answer.Vertical & Horizontal Lines▶ Show worked answerHide worked answer
- M1: both points have y = 2, so the line is horizontal
- A1: no, the equation is y = 2
Answer: No. Both points have y-coordinate 2, so the line is horizontal and its equation is y = 2. - 5
Question 5. Write down the inequality shown on the number line.
[2 marks]Drawing Inequalities on Number Lines▶ Show worked answerHide worked answer
- B1: closed circle at -1, so -1 ≤ x
- B1: open circle at 3, so x < 3: -1 ≤ x < 3
Answer: -1 ≤ x < 3
Mixed Topic Worksheet Grades 1/2/3: Day 021
- 1
Question 1. Leo looks at this cuboid.
He says, "A cuboid has 8 faces."
Is Leo correct?
Give a reason for your answer.Faces, Edges & Vertices▶ Show worked answerHide worked answer
- B1: No (it has 6 faces)
- B1: a reason: 8 is the number of vertices, or the cuboid has 3 pairs of opposite faces
Answer: No; a cuboid has 6 faces, and 8 is its number of vertices[2 marks] - 2
Question 2. Truncate 2.4983 to 2 decimal places.
Truncating Decimals▶ Show worked answerHide worked answer
- M1: keep 2 decimal places and remove the rest
- A1: 2.49
Answer: 2.49[2 marks] - 3
Question 3. A regular polygon has a perimeter of 63 cm. Each side is 9 cm. Work out the number of sides the polygon has.
Identifying Regular Polygons▶ Show worked answerHide worked answer
- M1: 63 ÷ 9 (perimeter divided by the length of one side)
- A1: 7
Answer: 7[2 marks] - 4
Question 4. Eli says that the straight line through the points (-3, 2) and (4, 2) has equation x = 2.
Is Eli correct?
You must give a reason for your answer.Vertical & Horizontal Lines▶ Show worked answerHide worked answer
- M1: both points have y = 2, so the line is horizontal
- A1: no, the equation is y = 2
Answer: No. Both points have y-coordinate 2, so the line is horizontal and its equation is y = 2.[2 marks] - 5
Question 5. Write down the inequality shown on the number line.
Drawing Inequalities on Number Lines▶ Show worked answerHide worked answer
- B1: closed circle at -1, so -1 ≤ x
- B1: open circle at 3, so x < 3: -1 ≤ x < 3
Answer: -1 ≤ x < 3[2 marks]