S1 Topic Revision

Question 1

What is 1/2 * 1/4?

Answer 1

Multiply the numerators together (1 * 1 = 1) and the denominators together (2 * 4 = 8) to get 1/8.

Question 2

How do you round 4.678 to the nearest tenth?

Answer 2

Look at the hundredths place (7). Since it�s 5 or greater, round the tenths place up, making it 4.7.

Question 3

What is the correct order of operations in BODMAS?

Answer 3

Start with Brackets, then Orders (powers and roots), then Division and Multiplication (left to right), and finally Addition and Subtraction (left to right).

Question 4

How would you calculate 3/4 + 1/2?

Answer 4

Find a common denominator (4), convert 1/2 to 2/4, then add the numerators (3 + 2 = 5), giving 5/4 or 1 1/4.

Question 5

How do you find the coordinates of a point on a grid?

Answer 5

Start from the origin (0,0), move horizontally to the x-coordinate, then vertically to the y-coordinate.

Question 6

Expand (3 + x)(2)

Answer 6

Multiply each term inside the bracket by 2: (3 * 2 = 6) and (x * 2 = 2x). So, the answer is 6 + 2x.

Question 7

Expand (x + 3)(x + 4)

Answer 7

Use the distributive property: xx = x�, x4 = 4x, 3x = 3x, 34 = 12. Combine terms to get x� + 7x + 12.

Question 8

Plot the point (3, -2) on a graph.

Answer 8

Start at the origin, move 3 units right (positive x), then 2 units down (negative y) to locate (3, -2).

Question 9

How do you calculate 6 � 2 * (1 + 2) using BODMAS?

Answer 9

Start with the brackets (1 + 2 = 3), then multiply (6 � 2 = 3), and finally multiply 3 * 3 to get 9.

Question 10

What does it mean to simplify the fraction 8/12?

Answer 10

Find the greatest common divisor (4) and divide both the numerator and denominator by it, giving 2/3.

Question 11

How do you interpret the fraction 3/4 on a number line?

Answer 11

Divide the line between 0 and 1 into 4 equal parts and place a point at the third mark, representing 3/4.

Question 12

How would you round 352 to the nearest hundred?

Answer 12

Look at the tens digit (5). Since it�s 5 or higher, round up to 400.

Question 13

What is the result of 3 - 2 + 4 using BODMAS?

Answer 13

Perform the operations from left to right (since both are addition/subtraction): 3 - 2 = 1, then 1 + 4 = 5.

Question 14

Describe the process for expanding (x + 2)^2.

Answer 14

Write (x + 2)(x + 2) and use distributive property: xx = x�, x2 = 2x, 2x = 2x, 22 = 4. Combine to get x� + 4x + 4.

Question 15

What are the coordinates of a point that is 4 units up from (1, 2)?

Answer 15

Add 4 to the y-coordinate: (1, 2 + 4) = (1, 6).

Question 16

How do you interpret a bar graph?

Answer 16

Each bar represents a category, and its height indicates the quantity or value associated with that category.