Numeracy Flashcards

What type of number is zero?

Answer: Real number and whole number

Explanation: As a real number, zero is located on the number line and represents a quantity that exists. As a whole number, zero is a non-negative integer and is included in the set of whole numbers {0, 1, 2, 3, ...}.

Which set of numbers includes only whole numbers?

Answer: 0, 1, 2, 3, 4

Explanation: Whole numbers are non-negative integers, including zero and all positive integers. This set includes only whole numbers because it consists of 0 and positive integers without any fractions or decimals.

Which number is NOT a whole number?

Answer: -2

Explanation: Whole numbers are non-negative integers, including zero and all positive integers. Negative integers, such as -2, are not considered whole numbers.

_____ is when you put two or more numbers together to find a total.

Answer: Addition

Explanation: Addition is the mathematical operation of combining numbers to find their sum.

What do we call the total number found by using addition?

Answer: Sum

Explanation: In mathematics, the sum represents the result of adding two or more numbers together.

_____ is the value of the number in the position of the total number.

Answer: Place value

Explanation: Place value refers to the value of a digit based on its position within a number. It determines the significance of a digit in representing a number's total value.

Which answer is NOT a step of subtraction?

Answer: Borrow every time.

Explanation: Borrowing in subtraction is performed only when necessary, typically when the digit being subtracted from is smaller than the digit it is being subtracted by. It is not necessary to borrow every time when performing subtraction.

When we borrow during subtraction, where do we borrow from?

Answer: The number to the left

Explanation: When we borrow during subtraction, we borrow from the number to the left. Borrowing in subtraction involves subtracting 1 from a higher place value to increase the value of a lower place value digit. This typically occurs when the digit being subtracted from is smaller than the digit it is being subtracted by.

Multiplication is the same as which of the following:

Answer: Adding equal groups

Explanation: Multiplication involves combining equal groups of numbers, which is analogous to repeated addition. For example, 3 × 4 can be thought of as adding three groups of four together, resulting in 12.

2 + 2 + 2 is equal to which of the following expressions:

Answer: 2 x 3

Explanation: The expression 2 + 2 + 2 is equal to the expression 2 × 3. Adding 2 three times is equivalent to multiplying 2 by 3, which results in 6.

You have 32 balloons to share with 8 people. If you use the subtraction strategy, how many balloons does each person get?

Answer: 3

Explanation: If you use the subtraction strategy to divide 32 balloons between 8 people, you would perform the following steps: Subtract the number of balloons given to each person from the total number of balloons: 32 − 8 = 24 Divide the remaining balloons by the number of people to find out how many balloons each person gets: 24 ÷ 8 = 3 So, each person would get 3 balloons.