addition and subtraction patterns

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another.

Front

What is a number pattern?

Back

A number pattern is a sequence of numbers that follow a specific rule or formula.

Front

What does it mean to find the missing number in a pattern?

Back

Finding the missing number means identifying the number that completes the sequence based on the established rule.

Front

What is the rule for the pattern 12, 15, ___, 21, ____, 27?

Back

The rule is to add 3 to the previous number.

Front

What are the missing numbers in the pattern 12, 15, ___, 21, ____, 27?

Back

The missing numbers are 18 and 24.

Front

What is the rule for the pattern 23, 33, ___, 53, ___, 73?

Back

The rule is to add 10 to the previous number.

Front

What are the missing numbers in the pattern 23, 33, ___, 53, ___, 73?

Back

The missing numbers are 43 and 63.

Front

What is the rule for the pattern 99, 97, 95, 93, 91?

Back

The rule is to subtract 2 from the previous number.

Front

What is the missing number in the pattern 2, 4, ___, 8, 10, 12?

Back

The missing number is 6.