Equation and Add Three Numbers

Front

What is an equation?

Back

An equation is a mathematical statement that shows that two things are equal, using an equal sign (=).

Front

What does '+' mean in math?

Back

The '+' sign means to add numbers together.

Front

What is the sum of 4 + 1 + 1?

Back

6

Front

What is the missing number in the equation: 7 + ____ = 13?

Back

6

Front

Is 9 = 9 - 1 true or false?

Back

False, because 9 - 1 equals 8.

Front

What is a fact family in math?

Back

A fact family is a group of related addition and subtraction equations using the same numbers.

Front

Complete the fact family: 10 - 3 = ?

Back

7 and 10 - 7 = 3.

Front

What is the sum of 6 + 4 + 2?

Back

12

Front

What does '=' mean in math?

Back

The '=' sign means that the two sides of the equation are equal.

Front

If you have 3 apples and you add 2 more, how many apples do you have?

Back

5 apples.