BKSB Numeracy Skills 1

Question 1

What is the value of 7 × 8?

Accepted Answer

56

Answer

The value of 7 multiplied by 8 is 56. This is a fundamental multiplication fact that can be found by repeatedly adding 7 eight times (7+7+7+7+7+7+7+7) or 8 seven times (8+8+8+8+8+8+8). Mastering basic multiplication tables is essential for more complex mathematical calculations.

Question 2

What is the square root of 81?

Accepted Answer

9

Answer

The square root of 81 is 9. A square root is a number that, when multiplied by itself, yields the original number. In this case, 9 multiplied by 9 (9 × 9) equals 81, confirming that 9 is its square root. Understanding square roots is a basic concept in mathematics.

Question 3

A recipe calls for 3 cups of flour. If you want to make half the recipe, how much flour do you need?

Accepted Answer

1.5 cups

Answer

To make half the recipe, you need to divide the original amount of each ingredient by two. If the recipe calls for 3 cups of flour, half of that amount is 3 ÷ 2, which equals 1.5 cups. This demonstrates basic division and understanding of fractions or decimals in a practical context.

Question 4

What is the result of 25% of 200?

Accepted Answer

50

Answer

To find 25% of 200, you can convert the percentage to a decimal (0.25) and multiply it by the number (0.25 × 200). Alternatively, recognize that 25% is equivalent to one-quarter (1/4), so you can divide 200 by 4. Both methods correctly yield the result of 50.

Question 5

What is the value of 2^3 (2 raised to the power of 3)?

Accepted Answer

8

Answer

2^3 means 2 raised to the power of 3, which indicates that the base number (2) should be multiplied by itself three times. So, 2 × 2 × 2 equals 4 × 2, which results in 8. This is a fundamental concept of exponents, representing repeated multiplication.

(BKSB) Basic and Key Skills Builder Practice Test

(BKSB) Basic and Key Skills Builder Practice Test

BKSB Numeracy Skills 1