Operations on Whole Numbers

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 4 × 3 means adding 4 three times: 4 + 4 + 4 = 12.

Front

What is the result of multiplying a number by 1000?

Back

When you multiply a number by 1000, you shift its digits three places to the left. For example, 458 × 1000 = 458000.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The order is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.

Front

What is addition?

Back

Addition is a mathematical operation that combines two or more numbers to get a total. For example, 5 + 3 = 8.

Front

What is subtraction?

Back

Subtraction is a mathematical operation that represents the removal of one number from another. For example, 10 - 4 = 6.

Front

What is division?

Back

Division is a mathematical operation that splits a number into equal parts. For example, 12 ÷ 4 = 3, meaning 12 is divided into 4 equal parts of 3.

Front

What is the result of 89 + 21 - 15 - 14?

Back

The result is 81.

Front

What is the result of 121 ÷ 11 × 13?

Back

The result is 143.

Front

What is the result of 78 - 56 ÷ 4 + 8 × 12?

Back

The result is 160.

Front

What is the result of 82 + (147 - 22) ÷ 5?

Back

The result is 107.